Updated: December 10, 2025 • NCAA Football • Swikblog Sports Desk
Less than a year after Penn State made him the highest-paid defensive assistant in college football, Jim Knowles is out in Happy Valley – and already being lined up for a fresh start in the SEC.
Multiple reports in the US college football media say Penn State will not retain Knowles as defensive coordinator for 2026, while Tennessee is moving quickly to bring him in to replace Tim Banks, who was dismissed after another season of leaky defense in Knoxville. For one of the sport’s most respected defensive minds, it is a brutally fast reset.
From blockbuster hire to one-and-done at Penn State
When Penn State prised Knowles away from Ohio State back in January, the move was sold as a statement of intent. The Nittany Lions handed him a three-year deal worth more than $3 million per season, a package that underlined just how desperate the program was to fix its drifting defense and keep pace with the Big Ten’s superpowers.
The reality was messier. Penn State’s defense never fully settled in Knowles’ famously intricate scheme. Missed tackles, busted assignments and late-game collapses became a grim theme as the Lions slipped out of the national-title picture. With a new head coach, Matt Campbell, now reshaping the staff, Knowles has become the first big-name casualty of the reset.
For a fanbase still processing the end of the James Franklin era, it’s another jolt: the splashy coordinator who was meant to steady everything is gone after one rollercoaster season.
Why Tennessee wants Jim Knowles so badly
If Penn State are moving on, Tennessee are pouncing. The Volunteers parted ways with defensive coordinator Tim Banks after a season in which they finished in the bottom third of the FBS in total defense and struggled badly against the pass.
Head coach Josh Heupel has built his reputation on a warp-speed, high-scoring offense, but even in the SEC you can only outrun your own defense for so long. Bringing in Knowles would be an admission that Tennessee cannot take the next step – from nine-win nuisance to genuine playoff contender – without a grown-up running the other side of the ball.
Knowles’ track record explains the interest. At Oklahoma State he turned the Cowboys into one of the country’s nastiest, most creative units. At Ohio State he helped deliver a national title and a top-five scoring defense. The promise for Tennessee is clear: marry Heupel’s aggressive offense with Knowles’ chaos-driven defense and you suddenly look a lot more like a modern SEC powerhouse than a fun-but-flawed sideshow.
What this move says about the modern college football arms race
The Knowles saga is also a blunt reminder of how unforgiving the college game has become. Coordinators are on head-coach timelines now: you are hired on massive money, given one or two seasons to transform a unit and, if the leap doesn’t come quickly enough, everyone moves on.
For Penn State, admitting the mistake this fast carries its own risks. The program will be paying off contracts for both a fired head coach and a top-end assistant while trying to build a new staff capable of competing with Michigan, Ohio State and Oregon. For Tennessee, the gamble is different. Big money and big expectations are about to follow Knowles south; Vols fans will expect visible defensive improvement from the moment he lands in Knoxville.
What next for Penn State’s defense?
The immediate question in State College is who comes next. Early speculation has centred on whether Campbell will look to long-time ally Jon Heacock, whose 3-high safety scheme at Iowa State drew rave reviews, or whether Penn State will chase another headline-grabbing name from a rival program.
Whoever takes over inherits a roster that is talented but bruised. The Lions have recruited well up front and in the secondary, yet the confidence of that group has clearly taken a hit. The new coordinator will have to simplify, rebuild trust and find a way to stop late-game implosions that became a defining feature of 2025.
What it means for the SEC – and for everyone else
If Knowles does land in Knoxville, the SEC chessboard shifts again. Alabama and Georgia already stack elite defenses on top of blue-chip recruiting. Texas and Oklahoma are arriving with NFL-style schemes and enormous resources. A Tennessee team that pairs Heupel’s offense with a top-10 defense suddenly looks like a genuine threat in the expanded College Football Playoff.
For the rest of the college football map, this is another example of how aggressive schools have become in chasing coordinators they believe can flip a program’s identity. It’s the same logic we see in big-money transfers and coaching raids in European football – something we recently explored from a different angle in our coverage of the North London derby’s high-stakes tactical arms race .
For a full national report on the move, including how Jim Knowles’ Penn State exit unfolded and why Tennessee is so aggressively pursuing him, you can read the detailed breakdown at Yahoo Sports.
From Happy Valley to Rocky Top: a defining career pivot
For Jim Knowles himself, this week feels like a crossroads. He left a national-championship defence at Ohio State to chase a huge contract and a fresh challenge at Penn State. Now, barely a season later, he is facing a different reality: labelled a misfit in one blue-blood program, asked to be the missing piece at another.
Maybe Tennessee is where his attacking brand of defense finally finds its long-term home. Maybe the pressure of the SEC spotlight and sky-high expectations will turn up the volume on every blown coverage and missed tackle. Either way, one thing is certain: in an era where coordinators are as famous – and as disposable – as head coaches, the next few months of Jim Knowles’ career will be watched every bit as closely as the teams he’s paid to stop.
For now, Penn State fans are left wondering what might have been, and Tennessee fans are refreshing their feeds, waiting for the “official” tag to drop on a hire that could redefine their program’s ceiling.
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