The key to this one was simple, Minnesota went to the man to man in the second half as opposed to the ball hawking zone and full court pressure they killed us with in the first half. By the time they switched back at 54-46 they had run out of gas and bigs with fouls to give, it was over from there.
In other words the Minnesota coaching staff really out-thought itself here, thinking Iowa would be confused by the shift in D philosophy, and thus have a discombobulated offense in the second half, it did not work, they lost.