Knowles would join James Franklin's Penn State staff after three seasons at Ohio State, where he won a national championship.

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

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

According to reports, Penn State is finalizing a deal to lure defensive coordinator Jim Knowles away from Ohio State.

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

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,

Nittany Lions coach James Franklin seeks to make a bold move, hiring the architect of the Buckeyes' championship defense.

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.

ATLANTA, GEORGIA - DECEMBER 31: Ohio State Buckeyes defensive coordinator Jim Knowles is seen prior to the game against the Georgia Bulldogs in the Chick-fil-A Peach Bowl at Mercedes-Benz Stadium on December 31, 2022 in Atlanta, Georgia. (Photo by Carmen Mandato/Getty Images) Getty Images

Former Ohio State defensive coordinator said in an address to Penn State players that the Nittany Lions were 'everything' to him growing up

Knowles took over in 2022 following a disappointing season in which the Buckeyes finished No. 59 in total defense. Under his leadership, the team's defensive performance improved each year. In 2022, Ohio State ranked No. 14, and in 2023, it reached No. 3. This year, it claimed the top spot in defensive rankings.