Ohio State star safety Caleb Downs gave his reaction on Monday to the departure of defensive coordinator Jim Knowles, who left for Penn State.

Doug Lesmerises, the creator of the Kings of the North college football podcast, joins Bob Flounders to discuss what new Penn State DC Jim Knowles brings to the table.

Ohio State asked defensive coordinator Jim Knowles to skip the team's College Football Playoff national championship celebration while he considered a

and then certainly no depth behind it," Day said of Knowles in late October. "So, he had to be creative about what he was doing there. Decision was made a long time ago that we have the D-linemen here at Ohio State that can play with four down linemen."

Ohio State defensive coordinator Jim Knowles ruffled feathers in Columbus by accepting a job at Penn State. The traitorous move to a Big Ten rival came

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

Jim Knowles, Penn State's new defensive coordinator, brought his Penn State football history and some Philly ethos to his first meeting with the Nittany Lions. Knowles, whom Penn State hired away from Ohio State, introduced himself to the team this week, telling players and fellow coaches, "This is where I want to be."

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.

James Franklin has picked up his first win over Ohio State since 2016. Penn State poached Ohio State defensive coordinator Jim Knowles over the weekend. While Ryan Day and the Buckeyes were busy celebrating their first national title in 10 years with a party at Ohio Stadium,

Oklahoma's search for a defensive coordinator is a month old and reportedly targeting a Sun Belt Conference defensive coordinator. Who is Nate Drieling?

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