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

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

The Ohio State Buckeyes just claimed the College Football Playoff national championship, powered by the nation’s most dominant defense, which ranked No. 1 in both total defense and scoring defense. Despite that dominance,

According to reports, Penn State is finalizing a deal to lure defensive coordinator Jim Knowles away from Ohio State.