Ehhhh...In our losses while Callahan still had a chance to retain his job, we averaged less than 20 points a game. Mustain would have made a huge difference in scoring points, sustaining drives, and keeping the defense fresh.
Our offense was terrible in 2007 before Ganz took over. Keller would throw a 5 yard check down on 3rd and 10 every drive. Yes, I'm well aware that the defense couldn't stop anyone either... but they were put in a number of terrible positions.