2 thoughts:
1)I'm certain that there is a pretty decent element of old school Michigan people that were offended when an outsider was hired as HC for FB. He really irritated these people further when he cleaned house and seemed a little disrespectful of some of Michigan's traditions when he got to Ann Arbor.
2)Michigan expects to win and win big...every year. The leash is short and the coach is on the hot seat every year. Unfortunately, for us, not too many Cyclone fans are familiar with these sort of expectations born of long term success.