MUScoop

MUScoop => Hangin' at the Al => Topic started by: CrackedSidewalksSays on January 03, 2011, 06:15:04 AM

Title: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: CrackedSidewalksSays on January 03, 2011, 06:15:04 AM
Is Defense Marquette's Achilles' Heel?

Written by: noreply@blogger.com (Rob Lowe)

After last year's senior day game (which Marquette lost (http://www.crackedsidewalks.com/2010/03/marquette-falls-on-senior-day-in.html).  Again.  Of course) I had a conversation with someone at a Milwaukee watering hole.  This person knows a lot more about basketball than I do, having served as both a team manager and a high school coach.  Me... I mostly work with numbers and watch hoops. I was complaining that Marquette's defense was not good.  His response was that Marquette was playing defense a lot better than they were at the beginning of the year.

We were both right.  Back to this in a minute.  Let's consider how important defense is to any program and what the gaps are for the Warriors.

Point #1 - Marquette will never be elite until their defense is elite.

The best summary of this fact comes from CNNSI's Luke Winn, whose holiday tradition of Early Warnings shows which teams are pretenders or contenders around New Year's Eve.  What I particularly like is that he shows the offensive and defensive efficiency of NCAA Elite teams.  Last year's list had the Elite Eight teams going back to 2003-2004 (http://sportsillustrated.cnn.com/2009/writers/luke_winn/12/29/winn.early.warnings/index.html).  Winn's 2010 Early Warnings List (ps - he bags on UConn and ND) (http://sportsillustrated.cnn.com/2010/writers/luke_winn/12/22/early-warnings-sleepers-contenders/index.html) shows other teams that might be contenders or pretenders this year.  Now, the point of Winn's list is to demonstrate which teams, ranked or unranked, might be real Elite Eight/Final Four/National Championship teams and which ones might not.  However, it's all built on the notion that there is a profile for each Elite Eight team.

 (http://1.bp.blogspot.com/_Xpuy4viivhI/TR_pTYu-ehI/AAAAAAAAAqo/H02BSWKh2yE/s1600/Elite%2BEight%2BDefensive%2BTeams.png)The average
(http://4.bp.blogspot.com/_Xpuy4viivhI/TSCToQfMwfI/AAAAAAAAArI/epv6dFHQdD0/s200/Elite%2BEight%2BDefensive%2BTeams.png)
 (http://4.bp.blogspot.com/_Xpuy4viivhI/TSCToQfMwfI/AAAAAAAAArI/epv6dFHQdD0/s1600/Elite%2BEight%2BDefensive%2BTeams.png) Elite Eight team has a national Defensive Efficiency Ranking of 16.  The average Final Four team has a rank of 9. For giggles, National Champs average 5.3 nationally in defensive efficiency.   But once your team's defensive efficiency gets worse than 25, you're really talking about a crazy run to make the Elite Eight (think Pittsnogle's WVU team or Stephen Curry's Davidson team).  Honestly, even when there, Elite Eight is your ceiling.

But what does this mean for Marquette?

Here is the same chart with Marquette's defensive efficiency numbers from the last two and a half years -- the Buzz Williams Era.


(http://4.bp.blogspot.com/_Xpuy4viivhI/TR_r8_ErkGI/AAAAAAAAAqw/HfstkGlPiwc/s320/Elite%2BEight%2BDefensive%2BTeams%2Bwith%2BMU.bmp)
 (http://4.bp.blogspot.com/_Xpuy4viivhI/TR_r8_ErkGI/AAAAAAAAAqw/HfstkGlPiwc/s1600/Elite%2BEight%2BDefensive%2BTeams%2Bwith%2BMU.bmp)There's the issue.  Marquette has managed to develop a nearly elite offensive capability in the last three years.   Buzz not only modifies the offense to the strengths of his team, but does it so effectively that the team runs a top 25 offense.

However, no matter how good MU is offensively it's the defense that will continue to hold the program back and is the reason that, despite an elite offense,  Buzz's teams play so many close games.  Ultimately, MU's inability to defend at a high level decreases the program's margin for error night after night.

Let's look at Buzz's progression as the MU head coach. Yes, I know that two years ago, Marquette was short.  And last year MU was also short with an even shorter bench.  This year Marquette is taller but now more inexperienced.   Still, rationalizing poor defensive efficiency eventually just becomes a pile of excuses, especially after 2.5 years.  After all, MU successfully makes the adjustments offensively year to year, and Buzz inherited a program that was consistently a good defensive team (#31 defensively in 2007 (http://kenpom.com/team.php?team=Marquette&y=2007) and #10 defensively the year before he became head coach (http://kenpom.com/team.php?team=Marquette&y=2008)).

Point #2 - Not all aspects of defense are the same

Essentially, defense can be broken up into the four factors.  Those are not letting your opponent get good shots, forcing turnovers, defensive rebounding, and not letting your opponent get to the line.    However, their relative weights are not the same.  This is very important.  Very.  Important.


(http://4.bp.blogspot.com/_Xpuy4viivhI/TR_z_4zPUsI/AAAAAAAAAq4/EyQiKo1EGVw/s200/Contributions%2Bto%2BDefense.png)
 (http://4.bp.blogspot.com/_Xpuy4viivhI/TR_z_4zPUsI/AAAAAAAAAq4/EyQiKo1EGVw/s1600/Contributions%2Bto%2BDefense.png)If one breaks down what contributes to defense, 27% of defense just comes from facing a D1 opponent for 40 min.  However, 41% of defense is effective Field Goal percentage (eFG%). Defensive  eFG is twice as important as forcing turnovers.  Effective field goal percentage is three times as important as preventing offensive rebounds.  And almost fourteen times more important than not letting your opponent get to the free throw line.

What this tells us is that the primary goal of a defense should be preventing open looks.  Then it's a tossup between forcing turnovers and limiting offensive rebounds (although forcing turnovers is better).  Finally, and way down the list, is preventing your opponent from getting to the line.

But what does this mean for Marquette?


(http://3.bp.blogspot.com/_Xpuy4viivhI/TR_7zNxhVmI/AAAAAAAAArA/1wbYI4g-mqs/s320/Contributions%2Bto%2BDefense%2B-%2BMU.png)
 (http://3.bp.blogspot.com/_Xpuy4viivhI/TR_7zNxhVmI/AAAAAAAAArA/1wbYI4g-mqs/s1600/Contributions%2Bto%2BDefense%2B-%2BMU.png)Here's how Marquette ranked/ranks on the four factors.  This is the big issue with Marquette's defense and the ceiling the Warriors' defensive performance places on the program.  The aspect that is the most important is where MU ranks the worst.  Consistently.  The area that is the least important for defensive performance is where Marquette ranks the best.  Consistently.  What the numbers say is that Marquette is emphasizing the wrong type of defensive priorities, year after year.

Vandy, West Virginia, and NCAA games

The last two games against Vanderbilt and West Virginia show how Marquette remains competitive.  Our offense is great.  Realize that an average offense scores 1.00 points per possession (ppp) and Marquette scored 1.10 ppp against Vanderbilt (who has the #21 defense and only allows 0.88 ppp).  On the road!   MU had an offensive eFG% of 60% against one of the nation's better defensive teams.  However, as that final basket showed, MU just couldn't make the stops.  Against West Virginia, Marquette had an extraordinary 1.22 points per possession but gave up a remarkable 1.15 ppp while allowing WVU to shoot an eFG% of 56%.  With offensive efficiency of this magnitude, MU should be winning games like these by double digits.

What MU is doing is winning games with their offense, but creating the lack of margin because of lousy defense.  Last year Marquette had an Offensive Efficiency  of 1.16 points per possession against Washington.  Two years ago MU  scored 1.11 points per possession against Missouri. Those efficiencies should have been good enough to win an NCAA game.

With this recent history, does anyone really believe Marquette can play lock-down defense when it matters?

Which brings us back to the story from the beginning of this post.  I have no doubt that Buzz can coach defense.  Well... better said, I don't know basketball well enough to question if the coaching staff is properly teaching defense.  So I trust when someone that knows basketball better than I do says the team is playing better defense.  He's right, MU is demonstrating modest improvement. Yet, the numbers are the numbers.  Not only has Marquette consistently not played good enough defense the last two and a half years, but it's been neglecting the most important aspect of defense and emphasizing the least important.  We're both right.

http://www.crackedsidewalks.com/2011/01/is-defense-marquettes-achilles-heel.html
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: brewcity77 on January 03, 2011, 07:15:30 AM
Excellent article. Does a good job of conveying its point and I guess the positive that comes out of it is that our eFG% seems to be continuously improving, Granted, 150 isn't good, but it's better than 252. Hopefully that keeps going in the right direction, and the maturation of some big bodies up front can help with those rebounding percentages.

Just checked on kenpom.com and he has us at #25 in offense and #73 in defense. I would be curious to see how much 3-pointers influence a team's success in March. So many small teams seem to make deep runs with the three-ball, but I suppose that can be an Achilles' heel too when it goes cold.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: bilsu on January 03, 2011, 07:39:14 AM
Two other factors:
It appears to me that MU is very good at playing defense without fouling, which is a plus. MU so far has not had a single player foul out this year. There cannot be too many other teams that can say that.

Defense ends when the defensive team secures the rebound. Generally MU losses can be pointed to MU giving up to many offensive rebounds, which is  a hugh negative.

Two observations:
Crean had big centers. JohnMueller(?), Scott Merritt, Robert Jackson, Marcus Jackson, Ousman Barro. Also had Claussen and Grimm. Until Buzz has similar bigmen his defense will suffer in comparison to Crean's.

I think you will see MU's overall defense improve as Buzz uses less players. The weaker defenders will not be playing much in Big East games.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: dw3dw3dw3 on January 03, 2011, 08:12:57 AM
Very interesting, thanks for that.... I believe both Huggy and Stallings noted there were some easy looks because of the pressure early on in games, but as the game progressed MU backed off in its overall defensive pressure to negate that.  Your stats suggest the pressuring defensive philosophy probably isn't worth it to get a few more steals since MU would give up open looks in return (against good teams).  I wonder if Buzz is adapting to this since I would think he knows  where his defense ranks.

I thought we played pretty good defense against WV from a perspective of having a hand in the face on every shot. They seemed to be hitting a high percentage of contested shots. The back door seemed to be shutdown. Usually our pressure and rotations lead to wide open 3s.






Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: MarquetteDano on January 03, 2011, 08:14:50 AM
Very interesting analysis.  One thing I will say about not fouling is that it keeps your best players on the floor longer.  That cannot be quantified in the statistics presumably can it?  Crean's teams fouled a lot more and I can remember games where our best players only played 15 minutes due to foul trouble.

It does beg the question though that would it be wise near the end of games to become more aggressive in not giving up open looks and potentially fouling more (not a purpose of course)?  I don't know if you can realistically teach kids to play defense one way for 35 minutes and then tell then another way for the last 5 however.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: tower912 on January 03, 2011, 08:22:56 AM
Is there a statistical analysis for points created off of steals?   IIRC, we generated a lot of points off of our steals against WVU.   When we stopped getting steals off of poor passes, WVU got back into the game. 
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on January 03, 2011, 08:27:54 AM
Quote from: bilsu on January 03, 2011, 07:39:14 AM
Two other factors:
It appears to me that MU is very good at playing defense without fouling, which is a plus. MU so far has not had a single player foul out this year. There cannot be too many other teams that can say that.

Defense ends when the defensive team secures the rebound. Generally MU losses can be pointed to MU giving up to many offensive rebounds, which is  a hugh negative.

Your first point is defensive free throw rate (FTR).  That is how often an opponent shoots free throws per shot attempt.  That's the part that is 3% of defense.  Your second factor is defensive OR% (or just defensive rebounding).  That's the part that is 12% of defense.

Quote from: bilsu on January 03, 2011, 07:39:14 AM
Two observations:
Crean had big centers. JohnMueller(?), Scott Merritt, Robert Jackson, Marcus Jackson, Ousman Barro. Also had Claussen and Grimm. Until Buzz has similar bigmen his defense will suffer in comparison to Crean's.

I think you will see MU's overall defense improve as Buzz uses less players. The weaker defenders will not be playing much in Big East games.

In Crean's final year, our effective height ranked 142.  The last two years our effective height was 305 and 308, respectively.  This year we are back up to 195, so our height has improved overall but the defense has not.  I guess I'll just say you might be right, but let's see how the numbers get better (especially eFG%).

Also, did you just give Crean credit for big men?  what?
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: GGGG on January 03, 2011, 08:31:26 AM
I also hope that this article dispells the notion that we don't attack the zone effectively.  Vandy and WVU played almost entirely zone, and we scored 1.10 and 1.15 points per possession respectively.

Quote from: bilsu on January 03, 2011, 07:39:14 AM
Crean had big centers. JohnMueller(?), Scott Merritt, Robert Jackson, Marcus Jackson, Ousman Barro. Also had Claussen and Grimm. Until Buzz has similar bigmen his defense will suffer in comparison to Crean's.

But isn't that Otule's role?  I mean, he's a lengthy 6'11" guy with very limited offense.  

Honestly, I think part of the problem is that Butler and DJO are *at best* average defensively.  DB and Blue are much better of course.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Canadian Dimes on January 03, 2011, 08:50:45 AM
I agree Butler and DJO suck on defense....2 or 3 times on Staurday Otule on the weak side block helped stop the ball on the ball side block leaving his man on the weakside block.  In all occassions Jimmy butler who was on the weakside elbow stood and watched.  Each time the shot went up and caromed to the WVU player (Jones) who scored or got fouled as Butler rotated late.  DJO is lost.  Oyule is improving but is still not htere yet.  croweder has been here a few months.

I agree our defense is our achilles heal when you are scoring 75+ points it should not be a one possesion game.  I think it will get better.  As otule and Crowder play more.  Our best defenders are Buycks and Blue
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: NersEllenson on January 03, 2011, 09:01:54 AM
Some good analysis.  That said, the FT rate seems to be undervalued.  Also this doesn't take into consideration quality of competition/SOS.  The Big East has been the best conference the last 3 years, arguably..better offenses to defend..
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on January 03, 2011, 09:07:58 AM
Quote from: brewcity77 on January 03, 2011, 07:15:30 AM
Just checked on kenpom.com and he has us at #25 in offense and #73 in defense. I would be curious to see how much 3-pointers influence a team's success in March. So many small teams seem to make deep runs with the three-ball, but I suppose that can be an Achilles' heel too when it goes cold.

Three pointers help increase your odds of an upset.  There are studies out there, and I've talked about it before.  If you are an underdog, your team benefits by playing higher variance strategies (more threes, pressing) from a risk/reward perspective.  The three is a shot that's worth more but goes in less.  I think an underdog can increase their odds of winning by something like 5%-15% depending on how many threes they chuck up.

Quote from: MarquetteDano on January 03, 2011, 08:14:50 AM
Very interesting analysis.  One thing I will say about not fouling is that it keeps your best players on the floor longer.  That cannot be quantified in the statistics presumably can it?  Crean's teams fouled a lot more and I can remember games where our best players only played 15 minutes due to foul trouble.

This was my starting point with Buzz's first year.  We fouled less but were so good offensively (#9) because our best players were always on the floor.  Plus, I think part of the final defensive numbers are skewed because James was out.  

Quote from: tower912 on January 03, 2011, 08:22:56 AM
Is there a statistical analysis for points created off of steals?   IIRC, we generated a lot of points off of our steals against WVU.   When we stopped getting steals off of poor passes, WVU got back into the game.  

One could be generated, but the data would have to be gathered manually.  No offense, but I'm not doing that.

Quote from: Ners on January 03, 2011, 09:01:54 AM
Some good analysis.  That said, the FT rate seems to be undervalued.  Also this doesn't take into consideration quality of competition/SOS.  The Big East has been the best conference the last 3 years, arguably..better offenses to defend..

No, it isn't.  FTR is not that important.  You may believe it is, but regression analysis disagrees with you.

Also, here are some defensive rankings for other BE teams
2008-2009 = UL (#2), UConn (#3), Nova (#15), Syracuse (#29), WVU (#14), GU (#22)
2009-2010 = Cuse (#18), WVU (22), Pitt (26), GU (47), Uconn (33), SJU (51)
2010-2011 = Cuse (19), Cincy (21), Pitt (35), Nova (20), SHU (39), UL (17).  There's more.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: GGGG on January 03, 2011, 09:16:50 AM
Quote from: Henry Sugar on January 03, 2011, 09:07:58 AM
Three pointers help increase your odds of an upset.  

Which is probably why WVU and Davidson both exceeded tournament expectations despite their poor defense.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on January 03, 2011, 09:23:02 AM
Here is my question, for someone that knows basketball.

With the current roster, how would one adjust defensive strategies to focus on effective field goal percentage defense? 
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: babytownfrolics on January 03, 2011, 09:26:26 AM
Quote from: Henry Sugar on January 03, 2011, 09:23:02 AM
Here is my question, for someone that knows basketball.

With the current roster, how would one adjust defensive strategies to focus on effective field goal percentage defense? 

I don't know basketball, but could the philosophy against fouling too much be adjusted to more in your face, physical defense that risks fouling more when Buzz begins to develop the type of depth throughout the roster that he wants to have?  In other words, we couldn't foul as much the last 2 years because we had almost no one capable on the bench of contributing.  We have more capable contributors this year but maybe not to the level that Buzz trusts completely?
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Dr. Blackheart on January 03, 2011, 09:57:43 AM
Excellent, excellent article Hank!

Last season, we were small and had limited depth which affected Buzz's strategy. He limited the tempo (# of possessions), tried to limit the fouls, and defended the perimeter (#1 in the BE in arc defense). But we got pulverized inside (2FG% and rebounding).

This season, I get the feeling he is still deciding. In the "Revealed" preseason episodes, he was stressing rotations in defending the paint.  So far, our 2FG% defense is 45.5% which is 104.  Last season it was 50.0% or 263rd. So, we are defending the paint better and not fouling (our FT rate defense is one of the tops in the country--23.9% FTR or 4th nationally). We are 2nd in the BE in not giving up points  (Pts./Game 67.2 or 2nd). And that isn't all bunny driven as the biggies were also held in relative check.  Rebounding (as painful as it seems) is also improved. So, Buzz is trying to limit exposure through positioning.

However, in defending the paint, we are 250th in defending the trey. In all our major games and many bunnies, we were being scotched on the perimeter.  Buzz then made in-game adjustments, and then we get beat on the inside (as seen in offensive rebounding, Plumlee, Huggy/Stallings going to backpicking, etc.).  Our defense becomes worse when Buzz has gone small in these match-ups (all bigger teams in our losses). Otule and Gardner take up space and should always be in the game (space eaters) as it allows us to extend our defense to cover the arc--limitations noted.  

We are not good at team defense--rotations, switches, looks, schemes. Look how the Illini played the Badgers yesterday. They went man and 2-3 match-up...always bracketing Taylor as he is the engine and the only one who can create a shot. U of I is big and quick granted, but UW could not get inside and create--so they became chuckers.  Marquette let Taylor have his way with us and let him penetrate which created open looks for the others. The end of the Vandy game is an example where we can be broken down.  
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: MarquetteDano on January 03, 2011, 10:16:41 AM
Quote from: Dr. Blackheart on January 03, 2011, 09:57:43 AM
Excellent, excellent article Hank!
 Our defense becomes worse when Buzz has gone small in these match-ups (all bigger teams in our losses). Otule and Gardner take up space and should always be in the game (space eaters) as it allows us to extend our defense to cover the arc--limitations noted.  

I basically agree with this with one minor change.  I think Otule, Gardner, OR FULCE should be in the game at all times.  Otule is obvious.  When he is not in I think either Gardner or Fulce should be in.  I lean towards Fulce right now especially if there is an athletic front line.  And especially if the five spends a lot of time outside the paint (e.g. Leuer type).
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Jay Bee on January 03, 2011, 10:18:29 AM
Quote from: Henry Sugar on January 03, 2011, 09:07:58 AM
No, it isn't.  FTR is not that important.  You may believe it is, but regression analysis disagrees with you.

I'm struggling with this one too.  Can you help out with how you get to a 3% figure?  I could deal with it being 15%-20%, but 3%?  
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: GGGG on January 03, 2011, 10:26:18 AM
Quote from: babytownfrolics on January 03, 2011, 09:26:26 AM
I don't know basketball, but could the philosophy against fouling too much be adjusted to more in your face, physical defense that risks fouling more when Buzz begins to develop the type of depth throughout the roster that he wants to have?  In other words, we couldn't foul as much the last 2 years because we had almost no one capable on the bench of contributing.  We have more capable contributors this year but maybe not to the level that Buzz trusts completely?


We are already in your face enough.  In fact, too much IMO. 

If I were Buzz I would pack it in a little more and even consider some sort of zone.  You can hide defensive issues in a zone occasionally, but I think one of the reasons he doesn't do this is because much of our offense is generated by turnovers, and you don't get turnovers out of a zone that often.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: dwaderoy2004 on January 03, 2011, 10:36:23 AM
Quote from: Jay Bee on January 03, 2011, 10:18:29 AM
I'm struggling with this one too.  Can you help out with how you get to a 3% figure?  I could deal with it being 15%-20%, but 3%? 

agreed.  I suppose when we only allow 7 free throws, it is a low percentage.  But if we gave up 20 free throws/game, how is that not more like 20%.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: dwaderoy2004 on January 03, 2011, 10:37:09 AM
Quote from: The Sultan of South Wayne on January 03, 2011, 10:26:18 AM

We are already in your face enough.  In fact, too much IMO. 

If I were Buzz I would pack it in a little more and even consider some sort of zone.  You can hide defensive issues in a zone occasionally, but I think one of the reasons he doesn't do this is because much of our offense is generated by turnovers, and you don't get turnovers out of a zone that often.

We already have trouble rebounding the ball.  A zone would only make it worse.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on January 03, 2011, 11:07:31 AM
Quote from: Jay Bee on January 03, 2011, 10:18:29 AM
I'm struggling with this one too.  Can you help out with how you get to a 3% figure?  I could deal with it being 15%-20%, but 3%?  

Short answer = when you control for eFG%, Turnovers, and Offensive Rebounds, opponent's free throws are not as important.

Long answer = I regressed Marquette's defensive efficiency on def eFG%, def TO%, def OR%, def FTR, and pace.  Adjusted R^2 was at 95%.  All the t-stats/p-values were significant at a 99% value.  Pace was not significant.

Coefficients for each Factor based on the regression analysis
Intercept 41.9
eFG% 1.28
TO%    -1.25
OR%    0.59
FTR   0.14

Average Value of each Factor
eFG% 50
TO%    21.8
OR%    31.3
FTR   29.3

Sum of contribution
Intercept 41.9
eFG% 1.28 * 50 = 64.4
TO%    -1.25 * 21.8 = -27.3
OR%    0.59 * 31.3 = 18.4
FTR   0.14 * 29.3 = 4.2
Total = 101.7 (compared to actual of 98.2 - pretty close)

I took the absolute value of each factor for a total of 156 and then divided each contribution above by 156.  4.2/156 = 3%
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on January 03, 2011, 11:22:30 AM
Quote from: dwaderoy2004 on January 03, 2011, 10:37:09 AM
We already have trouble rebounding the ball.  A zone would only make it worse.

defensive eFG% is three times as important as defensive rebounding.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: dwaderoy2004 on January 03, 2011, 11:32:17 AM
fair enough.  you should honestly consider writing a letter to Buzz.  He would probably read it, and with as numbers-centric as he is, probably consider it.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Jay Bee on January 03, 2011, 11:38:50 AM
Quote from: Henry Sugar on January 03, 2011, 11:07:31 AM
Short answer = when you control for eFG%, Turnovers, and Offensive Rebounds, opponent's free throws are not as important.

Long answer = I regressed Marquette's defensive efficiency on def eFG%, def TO%, def OR%, def FTR, and pace.  Adjusted R^2 was at 95%.  All the t-stats/p-values were significant at a 99% value.  Pace was not significant....

Ummm, I don't recall Probst teaching me this.  Thanks for the answer, I'll try to understand this a little better.. but, the 3% just doesn't pass the reasonableness test for me...

If I try to keep it simple, I think of putting another team on the line as a 1.38 ppp situation for them (ignoring a slight adjustment for front ends)... 2 shots, 69% avg FT shooting... maybe it's the fact you're controlling for the other factors..  
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on January 03, 2011, 11:56:56 AM
How about this for reasonableness?

We held WVU to a FTR of 11.7%.  We held Vandy to a FTR of 25.4.  UW@Madison had a FTR of 25%.  Those are all awesome for FTR.  By contrast, we are #4 nationally at def FTR at 24%.

And yet those opponents still had 1.15, 1.12, and 1.19 points per possession, respectively.  That is not awesome. 

How could our FTR be so good, and yet our defense so bad unless FTR were practically insignificant?
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Dr. Blackheart on January 03, 2011, 12:27:07 PM
Henry is predicting the imapct of the variables on defensive efficiency--not on points or margin of victory or loss--that can be compared across games and teams.  So, think of it as a sensitivity analysis.  What Henry confirmes is MU is a middle of the road defensive team and a high end offensive team in comparison to others who are NCAA successful.  We need to up our team defense--and we will get our most bang for our efforts on eFG% (this year, the treys).

Others think in points or margin vs. relative impact on a Marquette game.  For example, MU has outscored our opponents 1139 to 941--or by 198 points.  On free throws, MU has made 237 to our opponent's 123--or a gap of 114.  So, free throws account for 57.5% of our points margin so far this year.

Conversely, our opponents have made 106 treys to MU's 66--or a gap of 40.  That is a 120 points we are down.  On two's, MU has made 352 shots to 250 of our opponents, however--a difference of 102 shots or +204 points.  

So, the impact of a shot made on our defensive efficiency is much higher for a two or three than on a free throw....but the value of a free throw made (or not taken) is far more impactful to our margin.  We don't win the WVU game without making more FT's where we outshot them 14-7 on the line and where our winning margin was five.  FT's are our safety net --but we would have blown WVU out if we defended their shooters better.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on February 04, 2011, 01:11:30 PM
I decided to bump this rather than continue to threadjack the Tokoto thread.

Quote from: Pakuni on February 04, 2011, 11:55:56 AM
So, then, it's your contention that MU's defensive woes the past three years are the result of scheme and coaching deficiencies rather than personnel deficiencies?

I'm not saying you're right or wrong, but I'd be interested in knowing how you defend that position. And perhaps enlightening us on the nature of those deficiencies.
I sincerely don't mean this as a swipe, but it's not difficult to look at a bunch of sabermetric-type statistics and declare trends, etc. I'm more interested in the causes of those trends.

Originally, I held off on pointing out the defensive issues.  My thought was that Buzz's defense was designed as a containment defense and that it would get better once the relative height improved.  After all, we were short. 

However, this year we're taller but we're worse defensively.  So we started looking into it.  Because there's a ton of talent coming in.

There are basically 2-3 ways to be outstanding defensively.

Everything revolves around controlling eFG%.  All the really good defensive teams typically control eFG% as well as one other aspect.  eFG% and TO's... or eFG% and rebounds.

The 2008-2009 team forced TO's and controlled the three point defense.  The result was a #10 ranking.  Unfortunately, that team fouled a lot.

With largely the same personnel in 2009-2010 (minus Ouse and Fitz), the team was worse.  In the most important category, defensive eFG%, MU was #252.  3Pt Defense dropped from #9 to #199.  Too short to pack it in?  Maybe.  Reluctance to foul hampering tight perimeter D?  Maybe.  A strategy to keep the best players out of foul trouble so the offense was better?  Probably.

The defensive eFG% has been bad the last three years, with no strengths either inside the arc or outside the arc.  I believe that a different scheme could have been produced to emphasize either of those areas.  I believe the team has been talented enough to be better. 

Quote from: rocky_warrior on February 04, 2011, 12:27:47 PM
I guess I'm trying to figure out what point your making in constantly complaining about defense.  Or maybe there isn't a point, and it just bugs you.   I always appreciate your stats HS, but now it seems like you're just using them to back up your complaint.  That's valid, I suppose.

Also, I'm pretty sure Buzz pays *some* attention to the forums and CS, so maybe all the stats will help him out (since he's a numbers guy).

Part of the reason I mention it is because I consider that part of the responsibility of a forum like Cracked Sidewalks.  You won't hear about the bad defense from official Marquette releases or from Rosiak. 

If Marquette were merely average to good defensively, this team could be special.  However, you're right.  I probably harp on it too much. 
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: rocky_warrior on February 04, 2011, 02:25:11 PM
Quote from: Henry Sugar on February 04, 2011, 01:11:30 PM
If Marquette were merely average to good defensively, this team could be special. 

Agreed on that.  We'd have a much bigger number in the W column.

Plus, bonus points for going On Topic!
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Pakuni on February 04, 2011, 02:42:25 PM
Quote from: Henry Sugar on February 04, 2011, 01:11:30 PM
I decided to bump this rather than continue to threadjack the Tokoto thread.

Originally, I held off on pointing out the defensive issues.  My thought was that Buzz's defense was designed as a containment defense and that it would get better once the relative height improved.  After all, we were short. 

However, this year we're taller but we're worse defensively.  So we started looking into it.  Because there's a ton of talent coming in.

There are basically 2-3 ways to be outstanding defensively.

  • Control eFG% by shutting down the perimeter
  • Control eFG% by shutting down the interior
  • Force a lot of TO's or control the boards

Everything revolves around controlling eFG%.  All the really good defensive teams typically control eFG% as well as one other aspect.  eFG% and TO's... or eFG% and rebounds.

The 2008-2009 team forced TO's and controlled the three point defense.  The result was a #10 ranking.  Unfortunately, that team fouled a lot.

With largely the same personnel in 2009-2010 (minus Ouse and Fitz), the team was worse.  In the most important category, defensive eFG%, MU was #252.  3Pt Defense dropped from #9 to #199.  Too short to pack it in?  Maybe.  Reluctance to foul hampering tight perimeter D?  Maybe.  A strategy to keep the best players out of foul trouble so the offense was better?  Probably.

The defensive eFG% has been bad the last three years, with no strengths either inside the arc or outside the arc.  I believe that a different scheme could have been produced to emphasize either of those areas.  I believe the team has been talented enough to be better. 

As a favor, could you post MU's eFG% the past three years, and maybe the three before that for compairson's sake? There are trends and then there are trends, and i'm curious to know how significant this downward spiral is.

Also, when you speak of the decline between 2008-09 and 2009-10 ... do you mean 2007-08 and 2008-09?
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: MuMark on February 04, 2011, 02:54:20 PM
Last year EFG was 49.7. 2009 it was 50.9 2008 it was 46.3. This year its 50.6.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on February 04, 2011, 02:58:59 PM
Quote from: Pakuni on February 04, 2011, 02:42:25 PM
As a favor, could you post MU's eFG% the past three years, and maybe the three before that for compairson's sake? There are trends and then there are trends, and i'm curious to know how significant this downward spiral is.

Also, when you speak of the decline between 2008-09 and 2009-10 ... do you mean 2007-08 and 2008-09?
Yeah, that's what I meant.  The transition year between Crean and Buzz.  

defensive eFG% and rank for the last six years (starting with the freshman year of the Three Amigos)

Buzz
2011 - 50.6% (#233)
2010 - 49.7% (#201)
2009 - 50.9% (#252)

Crean
2008 - 46.3% (#30)
2007 - 47.2% (#58)
2006 - 47.5 (#80)

I'm not looking to get into a Crean vs Buzz argument (ever), but you can see the steady improvement in def eFG% year over year for the Amigos.  Then, their senior year, there was pretty clearly a big change in scheme between 07-08 and 08-09.  
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: mu_hilltopper on February 04, 2011, 07:23:23 PM
Could you shed some light .. is 2-4% statistically significant?
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on February 04, 2011, 09:28:07 PM
The data is mostly normal / bell-shaped, with an average is 49.1 and a standard deviation of 3.06.  The top 15% is at 46.0 and the bottom 15% is 52.2.

In the case of the rankings below, the 2-4% takes you from the 28th/37th percentile to the 57th/72nd percentile.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: mviale on February 04, 2011, 10:41:44 PM
Funny - I think our Achilles heel is top 10 ranked teams.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: ATL MU Warrior on February 05, 2011, 08:01:51 AM
Quote from: Henry Sugar on February 04, 2011, 02:58:59 PM
Buzz
2011 - 50.6% (#233)
2010 - 49.7% (#201)
2009 - 50.9% (#252)
Crean
2008 - 46.3% (#30)
2007 - 47.2% (#58)
2006 - 47.5 (#80)

I'm not looking to get into a Crean vs Buzz argument (ever), but you can see the steady improvement in def eFG% year over year for the Amigos.  Then, their senior year, there was pretty clearly a big change in scheme between 07-08 and 08-09.  
I've said it before but I am not a guy that gets into these stats.  But, I guess the obvious question to me is how meaningful is this particular stat if the year in which we had the worst eFG% is also the year in which we had the best team by most objective measures (record, ranking, etc.)?    How do you reconcile that?
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on February 05, 2011, 12:15:10 PM
Quote from: ATL MU Warrior on February 05, 2011, 08:01:51 AM
I've said it before but I am not a guy that gets into these stats.  But, I guess the obvious question to me is how meaningful is this particular stat if the year in which we had the worst eFG% is also the year in which we had the best team by most objective measures (record, ranking, etc.)?    How do you reconcile that?

You really should get into these stats.  They are much more meaningful than standard stats like points, rebounds, and field goal percentage.

That team (I'm assuming the senior year) was awesome offensively (#9 overall), which is how they won.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Silkk the Shaka on February 05, 2011, 02:56:33 PM
Quote from: Henry Sugar on February 05, 2011, 12:15:10 PM
You really should get into these stats.  They are much more meaningful than standard stats like points, rebounds, and field goal percentage.

That team (I'm assuming the senior year) was awesome offensively (#9 overall), which is how they won.

I think he's referring to the Final Four team.  We were #1 in offensive efficiency, #101 in defensive.  Similar profile to this year's team. 

http://kenpom.com/team.php?team=Marquette&y=2003

I'll take a stab at it.  It took huge early games from Diener and Novak to make the 2nd weekend, then Wade took over from there.  There was also a more balanced, reliable attack (imagine this year's team being able to dump it down to RJax).  But we had squeakers against Holy Cross and Missouri that luckily went our way, unlike the last five years (Felix, Lopez, Missouri, Washington, the only exception being MSU).  We'll break through to the next weekend again soon, and I wouldn't be shocked if it happened this year.  It all boils down to matchups (and actually making the dance).
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: ATL MU Warrior on February 05, 2011, 04:29:28 PM
Quote from: Jamailman on February 05, 2011, 02:56:33 PM
I think he's referring to the Final Four team.  We were #1 in offensive efficiency, #101 in defensive.  Similar profile to this year's team. 

http://kenpom.com/team.php?team=Marquette&y=2003

I'll take a stab at it.  It took huge early games from Diener and Novak to make the 2nd weekend, then Wade took over from there.  There was also a more balanced, reliable attack (imagine this year's team being able to dump it down to RJax).  But we had squeakers against Holy Cross and Missouri that luckily went our way, unlike the last five years (Felix, Lopez, Missouri, Washington, the only exception being MSU).  We'll break through to the next weekend again soon, and I wouldn't be shocked if it happened this year.  It all boils down to matchups (and actually making the dance).
Nah, I was referring to the Amigos Senior year.  The team had the worst eFG% of the 6 years/teams referenced, yet they were the best team out of those 6.  Not sure if that means anything, but it jumps out at me and leads me to believe that someone can focus on a stat like that and continually harp on it, but as long as the team excels in other areas it doesn't mean a whole hell of a lot. 
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Dr. Blackheart on February 05, 2011, 05:00:31 PM
Buzz gives an interesting rundown on the defensive lapses in the latest "Inside Marquette Basketball", in particular blaming the offense for the opposing runs. Deane, and O'Neill used defense to propel the offense.  Buzz's philosophy is clearly the reverse.

The best thing I like about Buzz is that he is certainly aware of the problem and talks about it freely. Fact is, he just has a different philosophy than many of us are used to. Waiting for his "switchables". 

http://www.youtube.com/watch?v=RYw8P89g4eM
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on February 06, 2011, 09:41:43 AM
Quote from: ATL MU Warrior on February 05, 2011, 04:29:28 PM
Nah, I was referring to the Amigos Senior year.  The team had the worst eFG% of the 6 years/teams referenced, yet they were the best team out of those 6.  Not sure if that means anything, but it jumps out at me and leads me to believe that someone can focus on a stat like that and continually harp on it, but as long as the team excels in other areas it doesn't mean a whole hell of a lot. 

Please re-read the original post for this thread for the argument that was made.  However, I'll restate the thesis succinctly.  A team has very little chance of going to the Elite Eight unless they have a top 25 defense, and eFG% is the most important part of having a good defense.  MU is weak in both areas.

For as good as that team was, remember that they lost six of eight games down the stretch (for good reasons).  That team also failed to get past the first weekend of the NCAA tournament.  That team choked away a lead at home against Syracuse on Senior Day.  That team lost to Villanova on a last-second shot, and scored 1.11 ppp against Missouri but didn't have good enough defense to win.  Does any of that sound familiar? 

During that stretch, opponents had an average eFG% of 53.8% (almost four percentage points higher than when DJ played).  Our defensive efficiency went from 0.97 ppp to 108.2 ppp.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: babytownfrolics on February 06, 2011, 12:31:22 PM
Quote from: Henry Sugar on February 06, 2011, 09:41:43 AM
Please re-read the original post for this thread for the argument that was made.  However, I'll restate the thesis succinctly.  A team has very little chance of going to the Elite Eight unless they have a top 25 defense, and eFG% is the most important part of having a good defense.  MU is weak in both areas.

For as good as that team was, remember that they lost six of eight games down the stretch (for good reasons).  That team also failed to get past the first weekend of the NCAA tournament.  That team choked away a lead at home against Syracuse on Senior Day.  That team lost to Villanova on a last-second shot, and scored 1.11 ppp against Missouri but didn't have good enough defense to win.  Does any of that sound familiar? 

During that stretch, opponents had an average eFG% of 53.8% (almost four percentage points higher than when DJ played).  Our defensive efficiency went from 0.97 ppp to 108.2 ppp.

So this suggests personnel might be part of the issue?  James was pretty incredible on defense that year.
Title: Re: [Cracked Sidewalks] Is Defense Marquette's Achilles' Heel?
Post by: Henry Sugar on February 06, 2011, 02:34:56 PM
Quote from: babytownfrolics on February 06, 2011, 12:31:22 PM
So this suggests personnel might be part of the issue?  James was pretty incredible on defense that year.

Personally, I don't believe so.  Here are the splits

with DJ - 50.1
without - 53.8
season - 50.9

Even with DJ and his killer on-ball defense, MU still was allowing 50.1% on eFG%, which would have been somewhere between the last two years but no better.

I prefer to think of it as making an average defensive scheme worse rather than the defense being good with DJ and poor without him.
EhPortal 1.39.9 © 2025, WebDev