I think that of the 42,000 seats, 15,000 will be filled by Michigan fans. Maybe/probably more. As for who is to blame, I think the blame falls on the fans this time. I know many fans, including me, were buzzkilled after Towson, but that wouldn't explain the lack of season ticket and mini plan sales that were available before the Towson game. Plus, season ticket holders had first crack at extras and still couldn't sell the venue out. As SubbaBub stated above, Manuel really tried to keep the atmosphere pro-UCONN. Now, I'm afraid George DeLeone and TJ Weist will need to prepare the OL and the rest of the offense for very loud crowd noise when we have the ball...in our home stadium.
But if there is a bit of silver lining, it will be that a few of the "casual" UCONN fans who will be in attendance will get their first glimpse (although this lesson was also given by WVU fans) of a passionate fanbase who will be in their seats waaaaaaaaaaaaaay before kickoff and will stay in their seats through the end. Maybe the Michigan fanbase will give the socialite fans a blueprint how to attend a football game.