The Nevada note is interesting. Really what that means to me is that if they lose 1 more game they will drop off the 4 line and that the committee is not valuing them as a top team due to there schedule. I would also say that Houston although on the 3 line is not that secure either. 1 loss could drop them down as well to a 4 or even further.
Nevada was the team I feel was most overseeded, followed by Purdue. Until (if?) they win at Utah State, they don't have any Q1 wins. I get that the P12 sucking killed their best chances at good wins, but ultimately the resume just doesn't match up & the 5/6 lines seem more appropriate.