Well, it's already that time again. We can track them here.
Akron
Old Coach - Rob Ianello (fired after 2nd season)
Rumored Leading Candidates - Joe Moorhead (Connecticut quarterbacks coach), Paul Winters (Wayne State head coach), Mike Johnson (UCLA interim head coach and offensive coordinator)
Arizona
Old Coach - Mike Stoops (fired in midst of 8th season)
New Coach - Rich Rodriguez (former Michigan head coach)
Arizona State
Old Coach - Dennis Erickson (resigning after 5 years)
Rumored Leading Candidates - Dan Cozzetto (Washington offensive line coach)
Arkansas State
Old Coach - Hugh Freeze (new Mississippi head coach)
New Coach - Gus Malzahn (Auburn offensive coordinator)
Colorado State
Old Coach - Steve Fairchild (fired after 4 seasons)
New Coach - Jim McElwain (Alabama offensive coordinator)
Florida Atlantic
Old Coach - Howard Schnellenberger (retiring after 10 seasons)
New Coach - Carl Pelini (former Nebraska defensive coordinator)
Fresno State
Old Coach - Pat Hill (fired after 15 seasons)
New Coach - Tim DeRuyter (former Texas A&M defensive coordinator)
Hawaii
Old Coach - Greg McMackin (retiring after 4 years as head coach)
Rumored Leading Candidates - Rich Miano (interim head coach)
Houston
Old Coach - Kevin Sumlin (new Texas A&M head coach)
Rumored Leading Candidates -
Illinois
Old Coach - Ron Zook (fired after seven seasons)
New Coach - Tim Beckman (former Toledo head coach)
Kansas
Old Coach - Turner Gill (fired after 2nd season)
New Coach - Charlie Weis (former Florida offensive coordinator)
Memphis
Old Coach - Larry Porter (fired after 2nd season)
New Coach - Justin Fuente (former TCU co-offensive coordinator)
Mississippi
Old Coach - Houston Nutt (will resign at end of season, his 4th and Ole Miss)
New Coach - Hugh Freeze (former Arkansas State head coach)
New Mexico
Old Coach - Mike Locksley (fired in midst of 3rd season)
New Coach - Bob Davie (former Notre Dame head coach)
North Carolina
Old Coach - Butch Davis/Everett Withers
New Coach - Larry Fedora (former Southern Miss head coach)
Ohio State
Old Coach - Luke Fickell (finished his interim appointment)
New Coach - Urban Meyer (former Florida head coach)
Penn State
Old Coach - Joe Paterno (fired in midst of bajillionth season)
Rumored Leading Candidates - Mike Pettine Jr. (Jets defensive coordinator), Dan Mullen (Mississippi State head coach)
Southern Mississippi
Old Coach - Larry Fedora (new North Carolina head coach)
Rumored Leading Candidates -
Texas A&M
Old Coach - Mike Sherman (fired after 4 years)
New Coach - Kevin Sumlin (Houston head coach)
Toledo
Old Coach - Tim Beckman (new Illinois coach)
New Coach - Matt Campbell (promoted from offensive coordinator)
Tulane
Old Coach - Bob Toledo (fired in midst of 5th season)
New Coach - Curtis Johnson (Saints receivers coach)
UAB
Old Coach - Neil Callaway (fired after 5th season)
New Coach - Garrick McGee (former Arkansas offensive coordinator)
UCLA
Old Coach - Rick Neuheisel (fired after 4 seasons)
New Coach - Jim Mora Jr. (former Seahawks head coach)
Washington State
Old Coach - Paul Wulff (fired after 4 seasons)
New Coach - Mike Leach (former Texas Tech head coach)