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

Penn State has lured Tom Knowles away from Ohio State. The Nittany Lions have hired Knowles to serve as their defensive coordinator.

Former NFL MVP and quarterback Rich Gannon was high school teammates with new Penn State defensive coordinator Jim Knowles. He explains why James Franklin made a great hire.

As Ohio State’s celebration tour for the school’s ninth national title continues, some of the Buckeyes’ key defensive players are grappling with the departure of their defensive coordinator. Jim Knowles decided to leave Columbus for Big Ten rival Penn State after three years at Ohio State,

Ohio State DC Jim Knowles is expected to become the new defensive coordinator at Penn State, sources tell @YahooSports. The two sides are in the process of finalizing an agreement. Big hire for James Franklin.

However, Knowles wasn’t in attendance. About an hour later, reports surfaced that Knowles is leaving Ohio State to serve as Penn State’s next defensive coordinator. The move leaves Day searching for a replacement. Here’s who he might consider as he enters his seventh season as the Buckeyes' head coach.

After Michigan football ran, ran again, and ran some more against rival Ohio State in 2021, Ryan Day recognized that he needed to make something of a drastic change. Out was longtime OSU staffer Kerry Coombs as the defensive coordinator, and in was Oklahoma State DC Jim Knowles.

The Ohio State Buckeyes capped off a great season with a historic College Football Playoff National Championship win, but defensive coordinator Jim Knowles found himself elsewhere for the celebration.

COLUMBUS, Ohio — Ohio State defensive coordinator Jim Knowles agreed to a deal to serve the same position at Penn State. The Nittany Lions hired Knowles on Monday to replace Tom Allen, who left to take the same job with Clemson after Penn State fell to Notre Dame in the College Football Playoff semifinals.

Ohio State football asked former defensive coordinator Jim Knowles to not show up to the Buckeyes championship celebration.