Gardner, who played in just three games that season, now has two years of eligibility remaining.
Question marks surrounding many of the remaining positions will begin to be answered as Spring Practice begins Saturday, March 16. Four weeks of drills culminate with the annual Spring Game April 13.
Six early enrollees join the group of returnees from the squad which finished a disappointing 2012 season with losses to arch rival Ohio State and South Carolina (in the Outback Bowl).
With a pair of excellent recruiting classes behind them, the Wolverines should contend for their first Big Ten championship since 2004.
Let's check out a position-by-position preview as Michigan awaits the beginning of spring practice.