By that I mean teams that could be 11-1 or 7-5, or something like that, depending on how it plays out.
Michigan seems to me like a team that could finish 11-1, or 8-4, without much of a stretch, most of that due to schedule, and an upset could make them 7-5.
Wisconsin, OSU, PSU, MSU, perhaps, all look to be good for 9 wins plus.
Florida and LSU looks like teams with a lot of unpredictability this season. FSU does as well, they could be "back". I'd throw Texas into this hopper as well, and maybe TCU and WVU(?).
Teams with unproven new QBs might make this list. Injuries are unpredictable. Anyone else show up as having a large degree of uncertainty as to outcome?