Callahan has been heavily criticized, with close-call wins against Wake Forest, Ball St., and Iowa State, a dismantling by USC, and four consecutive losses against Missouri, Oklahoma State, Texas A&M and Texas.

Rumors of team chemistry problems, underperforming highly-touted recruits, disenchantment among the players, a nonexistent defense and that Callahan has lost the team have lead to many fans asking for Callahan to resign or be fired.

On October 15, 2007, Athletic Director Steve Pedersen, who hired Callahan, was fired by the University, a strong indicator that Bill Callahan’s head coaching job with Nebraska is in serious jeopardy.