The Ohio State Buckeyes are fresh off winning the program's ninth national championship and have already turned their attention to defending their title in 2025. In the days following the Buckeyes' College Football Playoff Championship Game triumph,

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.

As Ryan Day looks to hire his fourth defensive coordinator in seven seasons, here are potential candidates to replace Jim Knowles.

Penn State announced Monday it had hired Jim Knowles as its defensive coordinator. According to multiple reports, Knowles reached a three-year contract with an average annual salary of $3.1 million. Knowles is a Philadelphia native. In a statement, Knowles said he was "excited for this opportunity" to join the Nittany Lions' program.

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,

Penn State released a video of new defensive coordinator Jim Knowles meeting with the program after his hiring.

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

CBS Sports reports that Ohio State defensive coordinator Jim Knowles is leaving the Buckeyes to join James Franklin's staff at Penn State. Knowles is expected to be paid an average of $3.1 million over three years, according to ESPN . During Knowles' time at Ohio State, the Buckeyes ranked in the top three in total defense for two of those years.

Penn State made the hiring of new defensive coordinator Jim Knowles official on Monday. Here's what each had to say about the move

Knowles is a Philadelphia native and has made stops as defensive coordinator with Western Michigan, Duke, and Oklahoma State prior to his three seasons with Ohio State. The former Indiana coach said the move brings he and his wife closer to their two daughters.

James Franklin and new Penn State defensive coordinator Jim Knowles released statements after Knowles was hired on Monday.