Pretty simple...he went 13-1 at WMU and now he has much better players, facilities, and resources. Wining 8 regular season games this year in the B1G is not a stretch by any means. Chryst went from Pitt to WI and won two more games in his first year at WI compared to his last year at Pitt.
Again, I find it interesting that now that he's here, expectations are lower because he came from a mid-major...a big fish in a small pond. He's either is as good as advertised or is not. Percieved a better HC than TC. I expected TC to win 8 games this year. Why would I change it for Fleck?