FYI, here's what Oday has to say on the subject re salaries (lifted from "ask the AD" article goGriz):
Question: Why are salaries at UM so much lower than FBS Division 1 schools, and even some schools in the FCS?
Answer: The recent escalation in salaries is the result of new multi-million dollar television contracts being paid to the major BCS conferences (Big Ten, SEC, ACC, Big 12, Pac 12 and Big East), as well as other large revenue streams being accorded to these schools through the NCAA men's basketball tournament and large ticket sale revenues. Institutions, themselves, are not paying the large salaries for the most part. At the FCS level, UM is in the upper third of salaries accorded to its head football coach and the pool of assistants. It should also be noted that coaches contracts are not always calculated the same across the board - and in the case of UM, there is additional compensation for incentive bonuses, camps monies, television contracts, etc., that supplement the base salary. That is not the case at many other FCS schools.