After a 17-1 start to the 2012-13 season and four wins in five Big Ten conference games, there does not appear to be a lot bothering John Beilein, head coach of the No. 2 Michigan Wolverines.
Michigan is arguably the nation's top team at this stage of the regular season, but unforeseen bumps in the road are always lurking, and the Wolverines have an upcoming stretch of games that will play a critical role in determining this year's Big Ten champion.
Believe it or not, there are still five things Beilein and his assistants should be worried about for the remainder of the season.
Click ahead to find out what they are.
Note: These worries are ranked based on the probability of them actually occurring and how much of a direct impact they would have on Michigan's ability to win the Big Ten.