Michigan has hired former NFL coach Mike Johnson to the staff. There’s no news on a specific position, so he’s likely an offensive analyst.
http://www.detroitnews.com/story/sports/college/university-michigan/2017/02/13/um-adds-johnson-prospects-dad-coaching-staff/97861302/
His son, Michael Johnson, Jr., is a 2019 quarterback prospect with offers from Arizona, Florida State, and Louisville, among others. The younger Johnson currently attends Sunnyvale (CA) King’s Academy, and it’s not clear whether he’ll move to Michigan with his dad or not.