This a tough one. We all know how ridiculous Dungy to LOL is, and Tressel won't be getting a major college job anytime soon. The Aggies also seem to be a bit of a mess right now. Apparently the AD didn't want to fire Sherman and the President and Board of Regents did it anyway. Have to assume there's gonna be a change at AD there also. I do think that Petersen is the most likely of the three to make the move though.
Petersen's son was diagnosed with cancer a few years ago, but I read an article last week that said he's doing much better now. Who knows what "much better" means in cancer terms though. The internet rumor has been for years that he has a special needs son, which isn't true.