Here's the way it was explained to me:
There are something like 17 voting board of trustee members. Maybe 6 or 7 of them actually attend the occasional UM football game. Of those 6 or 7, there are 3 who are actually avid UM fans. The rest could not care any less about the athletics programs.
It's those other 12 or so BoT members who like Al Golden because, from their limited view, he looks the right way, dresses the right way, says the right things in front of the camera, etc... For that reason, they will continue to show loyalty to him.