I said this in another thread, but, it all boils down to a pretty simple analysis: Ferentz is 6-7, that's 6 wins and 7 losses, vs. Iowa State. That's 13 teams. Some were young, some were more experienced and others were veteran. But the sum of them all is, losing record.
Highest paid coaches:
5.17, Nick Saban, Alabama, 15, two national championships
5.10, Mack Brown, Texas, 26, one national championship
4.53, Bob Stoops, Oklahoma, 12, one national championship
4.00, Lane Kiffin, USC, 2, 15-11 career record
3.78, Kirk Ferentz, Iowa, 12, four top-10 seasons
3.75, Les Miles, LSU, 10, one national championship
3.65, Jim Tressel, Ohio State, 10, one national championship
Kiffin's record after two years is a winning record. Ferentz's was 4-18 after two years.