Michigan men's basketball coach John Beilein during the Wolverines' practice on Friday.

Michigan men's basketball coach John Beilein, at 62 years old, isn't afraid to shake things up.

Junior guard Zak Irvin plays in a game against Maryland on February 28, 2015.

Irvin will miss six to eight weeks after undergoing back surgery at U-M Hospital, the Wolverines announced Wednesday.

It has been a busy summer for Michigan basketball alumni.

Two recent stars have been traded, and another finally appears to have found a longer-term home. Whether they’ve stayed put or moved around, there has been no shortage of developments for the former Wolverines.