Knowles would join James Franklin's Penn State staff after three seasons at Ohio State, where he won a national championship.

The departure of defensive coordinator Jim Knowles adds a challenge for Ohio State, which was already dealing with heavy roster turnover on defense.

Fresh off a national championship run with Ohio State, Buckeyes defensive coordinator Jim Knowles has accepted the same position at Big Ten rival Penn State, Matt Zentiz confirms. Though the exact numbers of the deal aren't public yet,