Five spring ball storylines to watch for Michigan's defense

Spring practice is underway for Michigan Wolverines football, and will run through the April 2 spring game at The Big House. Michigan head coach Jim Harbaugh brought in a new defensive coordinator in Jesse Minter from Vanderbilt, and the Wolverines are set to return less than half of their production from last season. Seven starters have departed, meaning plenty of others will have to step up. Here, we break down the five biggest storylines we'll be tracking throughout the spring, discussing the edge rusher spots, new coaches, early enrollees and more.