When you only have 5 players on the floor, one elite player can win games around 4 good other players. We have seen Melo and KD take their teams on a national championship ride as they were clearly the best players in the NCAA Tournament. You could even use Glen Rice as a Michigan example of that same theory.
As of today, Michigan doesn't have an elite player on the floor. Some have said, that could be Wagner when healthy, but that reveal is delayed until he heals. Michigan this season will have to win like they did last night, play great defense, hit 3's, find Big Sleep down low, and play with energy at all times.