COLUMBUS, Ohio — Ohio State football’s national title defense will come with a new face running the defense. The Buckeyes are losing defensive coordinator Jim Knowles. After three seasons in Columbus, he’s leaving to serve as Penn State’s defensive coordinator, according to multiple reports.

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,