A few days after Ohio State won the College Football Playoff National Championship, Ryan Day's program took its biggest hit, losing defensive coordinator Jim Knowles to Penn State, who hired him in th

Guerrieri represents the continuity option. He's a Knowles guy through and through, initially coming with him to Ohio State as a senior analyst back in 2022. After a year apart at Indiana in 2023, Knowles missed him so much that he convinced Day to bring him back to Columbus, where he spent this past season as safeties coach.