During the National Championship celebration Ohio State Buckeyes head coach Ryan Day sent a very strong message to an assistant coach in the program, dubbing him as an upcoming talent in the country.

The Ohio State Buckeyes surprisingly lost its defensive coordinator right after winning a national championship, with Penn State paying Knowles $3 million to leave Columbus. While Ryan Day likely made a strong pitch to keep Knowles in town,

Ryan Day and the Ohio State Buckeyes received excellent news as one of the biggest stars on the defense announced his return to the school for the upcoming 2025 season.

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.

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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.

Fresh off a national title, the Buckeyes will be looking for a new defensive coordinator. Jim Knowles has left for conference rival Penn State and Ryan Day has his first hurdle of the offseason to deal with.

Ohio State Buckeyes defensive coordinator Jim Knowles was hired by the Penn State Nittany Lions in the same job. Oregon Ducks safeties coach Chris Hampton is reportedly a candidate, as well as Buckeyes safeties coach Matt Guerrieri.

Ohio State, the first team to run the gauntlet of four playoff games on its way to the national title, celebrated with 30,000 Buckeyes fans on Sunday at Ohio Stadium.

Following Ohio State's national championship success, Jim Knowles is departing Columbus. The coach reportedly accepted an offer to become the Buckeyes' Big Ten rival Penn State defensive coordinator on Sunday.