He took over San Diego, who had never won a conference title and in year 2 and 3 they won their conference. He went to Stanford, who was 1-11 and he turned them around where they went 12-1 and won the Orange Bowl within 4 years. He went to the 49ers, who hadn't had a winning record in over a decade and he went 44-19-1 with 3 division titles, a conference title and super bowl appearance. He came to Michigan when we were terrible and we have won back to back B1G titles and back to back CFP appearances.
The guy is definitely out there, but he is a helluva football coach and while he rubs those in charge the wrong way -- his players absolutely love him.