Jim Knowles Moves from Ohio State to Penn State as Defensive Coordinator

2025-01-26

Ohio State defensive coordinator Jim Knowles is leaving the program after three seasons to take the same position at Penn State, according to multiple reports. Knowles, who played a pivotal role in transforming Ohio State’s defense into one of the nation’s best, is expected to become the highest-paid defensive coordinator in college football history, with a salary exceeding $3 million.

During his tenure at Ohio State, Knowles led the Buckeyes to top-three rankings in total defense in each of the past two seasons, including a historic 2024 campaign where the team held opponents to just 254.6 yards per game. His departure leaves Ohio State head coach Ryan Day searching for a replacement as the Buckeyes prepare to defend their national championship.

Penn State, meanwhile, is making a significant investment in Knowles to elevate its defense, which ranked sixth nationally in 2024. The Nittany Lions are aiming to build on their College Football Playoff semifinal appearance and contend for a national title in 2025. Knowles’ hiring marks a rare move of a coordinator leaving one elite program for another within the same conference.

Ohio State’s coaching staff and players celebrated their national championship on Sunday, with Day praising Knowles for his contributions to the team’s success. However, the Buckeyes now face the challenge of maintaining their defensive dominance under new leadership. Potential candidates to replace Knowles include internal options like safeties coach Matt Guerrieri, as well as external names such as Indiana defensive coordinator Bryant Haines and former Ohio State co-defensive coordinator Jeff Hafley, currently with the Green Bay Packers.

Knowles’ move to Penn State underscores the growing financial stakes in college football, with top coordinators now commanding salaries comparable to head coaches. The ripple effects of this hire will be felt across the Big Ten as both programs gear up for the 2025 season.

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