Lal, 55, arrived alongside Harbaugh last season and played an instrumental role on the offensive side of the ball under coordinator Greg Roman. RELATED: Chargers signing Tee Higgi

Former Wisconsin head coach took a shot at Jim Harbaugh over his move to the NFL. That followed an update to Michigan's sign-stealing scandal

O'Leary is a former Notre Dame assistant who mentored NFL standout Kyle Hamilton while he was with the Irish. He spent the 2021-23 seasons in South Bend coaching the Irish safeties.

This week, University of Illinois head football coach Bret Bielema took a shot at Harbaugh on social media. Bielema bemoaned Harbaugh leaving the college level for the pros, writing the following: “Was looking forward to playing but understand why you ran to the NFL.”