My top 2...
#6 Stanford
New HC, Def Coord, and OC plus some key losses, particularly on defense. Schedule is in their favor w/ UO, UW, CAL, & ND at home. However, difficult road gms at UA and USC. Just don't see the Cardinal ranked this high...Pre-Season, and certainly in the final Poll.
#7 Boise State
Sept 3 gm at Georgia will reveal much for both teams. Gone is their OC. Other than that the team returns most everyone, including Kellen Moore at QB but not his go-to WR's Pettis and Young. BSU hasn't lost at home since 1998 but AF and TCU may end that run in 2011. Too, I expect Neveda, @Fresno St, and @SDSU to test the Broncos.
Will there be another BCS run in 2011? NIMO.