Fox Sports' Bruce Feldman and Brandon Justice of are reporting that Michigan Football Offensive Coordinator Tim Drevno (pictured above) has resigned his post with the program.

Drevno has been with the Wolverines since 2015.  He has been the offensive coordinator since joining head coach Jim Harbaugh at Michigan three years ago.

After a pair of 10-3 seasons in 2015 and 2016, respectively, the Wolverines finished 8-5 in 2017, including losses to Michigan State, Penn State, and Ohio State.  And they lost in the Outback Bowl on New Year's Day to South Carolina.

Here's Feldman's tweet:

Feldman also reports that former Ohio State and Minnesota assistant Ed Warriner is expected to take over as Michigan's Offensive Line Coach. The school recently hired former Colorado State and Florida head football coach Jim McElwain as their new wide receivers coach.

Michigan has not commented on any report involving Drevno, and Drevno is still listed as an assistant coach on Michigan's athletic website.