I think Michigan can will with a good HC and win championships with a great HC. It remains to be seen which Harbaugh is. I do think he has to win big in his first three years or he will fade away because he thrives on controversy and attention. As Steve Spurrier said in answer to a question of why he was not saying controversial things about Tennessee and Georgia any longer, “When you are not winning no one cares what you think. When we start winning nine or ten games a year I will talk smack again.” And, he did talk smack when he started winning. I think Harbaugh will be the same.