In the NBA playoffs, teams try to get through the first couple rounds as fast as possible so they can have extra rest before the next series begins. Michigan just won 4 games in 4 days and will have either 9 or 10 days off until the NCAA Tournament starts.
With the compressed Big Ten schedule this year and the early Big Ten Tournament to play at MSG, the Wolverines get maybe too long of a break. I know some coaches even thought about scheduling a non-conference game this weekend, but I think you run up against a rule that only allows so many regular season games for most programs.