With Aaron Glenn off to coach the New York Jets, Dan Campbell will be tasked with finding a new defensive coordinator for the first time in his tenure. While there are several intriguing candidates internally, headlined by linebackers coach Kelvin Sheppard, the Lions could look externally as well.

The Detroit Lions are the third team since at least 2010 to have both coordinators become NFL head coaches in the same offseason.

Before the regular season kicked off former head coach Mike Zimmer went scorched earth on the Vikings. He came across like a grumpy old man but found a job anyways. It just didn’t last very long.

(Editor's Note: Time to check the mail! The DallasCowboys.com staff writers answer your questions here in 'Mailbag' presented by Miller Lite.)

Cowboys head coach Brian Schottenheimer will not have Mike Zimmer running the defense for him in 2025. Zimmer told Ed Werder of ESPN that he will not be returning to Dallas for a second season. Zimmer said that he will likely retire from coaching.

Former Chicago Bears head coach Matt Eberflus was named the defensive coordinator of the Dallas Cowboys on Tuesday.

Matt Eberflus will be Dallas' third defensive coordinator in as many years, with Dan Quinn here in 2022 and Mike Zimmer - who tells us he's retiring - here in 2024.

Eberflus is reportedly expected to be Dallas HC Brian Schottenheimer's first hire, pending a final in-person interview.

The Dallas Cowboys have found their new defensive coordinator after hiring former Chicago Bears head coach Matt Eberflus, the team announced Tuesday. Eberflus' hiring comes days after Brian Schottenheimer was hired as the franchise's new head coach.

Just days after the NFC’s top-seeded team was stunned by sixth-seeded Washington, offensive coordinator Ben Johnson was hired by the Chicago Bears and defensive coordinator Aaron Glenn left to lead the New York Jets.

The Detroit Lions are the third team since at least 2010 to have both coordinators become NFL head coaches in the same offseason. They’re hoping not to take a step back next season as the other two teams did.

The Detroit Lions are the third team since at least 2010 to have both coordinators become NFL head coaches in the same offseason.