The 2013 College Football season starts August 29th, but the speculation of coaches on the hot seat is never too early.

Stacy Revere, Getty Images

Mack Brown (Texas)

Brown won a National Championship in 2005 with Vince Young and took the Longhorns to the 2009 National Championship game losing to Alabama 41-24. Since 2010, the Horns are just 22-16 and finished the 2010 season with a 5-7 record, Brown's only losing season in Austin.

Lane Kiffin (USC)

Kiffin is a divisive figure in college football and is on the hot seat in Los Angeles leading the USC Trjoans program. Kiffin enters 2013 in his fourth season, but has to find a replacement for the departing Matt Barkley. USC was a pre-season No. 1, but finished the 2012 season with a 7-6 record and an embarrassing loss to Georgia Tech in the Sun Bowl

Matthew Holst, Getty Images

Kirk Ferentz (Iowa)

Ferentz has done what many have failed to do: succeed in following the legend. Ferentz went 4-19 in his first two seasons in Iowa City following beloved coach Hayden Fry, but would go 45-17 the next five seasons with three bowl wins and two Big Ten Championships. The Hawkeyes slumped in 2012 to 4-8 and with Ferentz making $3 million plus a season, the natives are growing restless for a return to the national stage.

Gary Pinkel (Missouri)

Pinkel came to Missouri in 2001 from Toledo and struggled his first four seasons in Columbia before gaining a national presence with Chase Daniel under center. The Tigers would go 30-11 from 2006 to 2008 with two Big 12 North Division titles. The Tigers left the Big 12 in 2011 for the SEC and fell to 5-7. Compound Texas A&M going 11-2 and having a Heisman Trophy winner doesn't help Pinkel.