Former offensive coordinator Ben Johnson is off to Chicago to lead the Bears. Former defensive Aaron Glenn is now the head coach of the New York Jets. Both will be missed in Detroit, but Campbell and company must move forward with the assistants remaining. That process has already begun.

The former Arizona Cardinals head coach has been selected by new New York Jets head coach Aaron Glenn to become Gang Green's defensive coordinator per NFL insider Tom Pelissero.

Co-defensive coordinator with Luke Fickell for Ohio State’s 2014 national champions, Chris Ash helped coach Urban Meyer’s Buckeyes go 26-2 in 2014-15.

The New York Jets have agreed to bring on former NFL head coach Steve Wilks as the team’s defensive coordinator under coach Aaron Glenn, according to a league source.

Notre Dame is set to hire Chris Ash as its defensive coordinator, CBS Sports' Matt Zenitz reports. The former Rutgers coach replaces Al Golden, who departed his post to take the same job with the Cincinnati Bengals in the NFL .

Days after Al Golden left to become the defensive coordinator of the Cincinnati Bengals, the Fighting Irish have hired former Rutgers coach Chris Ash to be their new defensive coordinator, according to ESPN's Pete Thamel. Ash has been in the NFL since the start of the 2021 season and worked as a scout for the Jacksonville Jaguars in 2024.

In hiring Jim Knowles, Penn State followed the adage: If you can't beat them, turn them to your side. While everyone in college football is already talking about Penn State's new defensive coordinator Jim Knowles, it's possible that not everyone is realizing how much his betrayal of Ohio State benefits his new club.

Look back at some of the best photos of defensive coordinator Robert Saleh's first stint with the San Francisco 49ers. Look back at some of the best San Francisco 49ers defensive line photos throughout the 2024 season. DL Maliek Collins, DL Sam Okuayinonu, DL Leonard Floyd, Defensive Line Coach Kris Kocurek, DL Nick Bosa

According to the NFL Network's Tom Pelissero, the Jets have agreed to terms with former Arizona Cardinals head coach Steve Wilks to become the team's new defensive coordinator. It's a crucial hire after Glenn made clear he did not intend to call plays for the defense in 2025.

The first assistant coach has been hired for the New York Jets under head coach Aaron Glenn. It wasn't the defensive coordinator position or the offensive play-caller role. Each is being closely watched around the league at this point.