I'm not talking anecdotal evidence. if the AD has empirical evidence showing that fans are leaving in droves, you may have a point.
Firing a winning coach, especially given the limitations that come with the BYU job, would set the program back. let BYU and Bronco separate after a contract year.
to be clrear, i'm not please with Bronco either. but if you think that firing him is the best option, think about hiring your next coach. will a coach with options choose us, knowing he'll be fired after a couple 8-5 seasons?