Michigan officially announced the hiring of Chris Partridge to Jim Harbaugh’s coaching staff on Wednesday afternoon.

Partridge most recently served as Ole Miss’ defensive coordinator, but was replaced by Pete Golding earlier this offseason. He also previously coached at Michigan from 2015-19.

It’s not yet known what Partridge’s role will be in Ann Arbor. During his previous stint at Michigan, he was the program’s special teams coordinator. He also coached linebackers and safeties for the Wolverines.

Here’s the program’s announcement:

“My family and I could not be more excited to be back in Ann Arbor,” Partridge in the release. “Michigan has always remained a huge part of us. I appreciate Coach Harbaugh for having continued trust and faith in me to help him with the championship brand of football he has established. I look forward to working with the staff to recruit, mentor and coach the incredible young men that make Michigan the best football program on and off the field in the world! Go Blue!”

Michigan already has 10 assistant coaches, so Partridge’s hiring could be in anticipation of a coach’s departure that has not yet been announced.