Here's the list, as per ESPN...

Possible Michigan candidates

• Jim Harbaugh, Stanford: Forsook his alma mater for NFL riches, though not as much as he could have gotten.
• Les Miles, LSU: Already has one of the best jobs in the country.
• Brady Hoke, San Diego State: Is he still too unproven as a head coach?
• Gary Patterson, TCU: Beat Wisconsin, which Rich Rod couldn't this season.
• Chris Petersen, Boise State: Has never shown any interest in leaving Broncos.
• Jon Gruden, ESPN: Would Michigan have to take his brother as head-coach-in-waiting?
• Mike Trgovac, Green Bay Packers DL coach: Former Carolina Panthers DC is a Michigan alum.
• Kyle Whittingham, Utah: Bloom wore off some after an uncharacteristic down year.
• Kirk Ferentz, Iowa: U-M president Mary Sue Coleman came to Ann Arbor from Iowa City.
• Dan Mullen, Mississippi State: Proved in bowl game that he understands spread offense -- and defense.
• Charlie Strong, Louisville: Standout recruiter only has one year's experience as a head coach.
• Pat Fitzgerald, Northwestern: First coach to officially take himself out of the running.

I think that Stanford is a serious threat to hire Chris Petersen away from Boise State...especially with Luck still being there for another year.

My guess is Hoke to Michigan, Petersen to Stanford.