According to NFL Network's Ian Rapoport and Mike Garofolo, the team is promoting LBs coach Kelvin Sheppard to defensive coordinator. He'll take over for new New York Jets head coach Aaron Glenn.

The Detroit Lions are promoting linebackers coach Kelvin Sheppard to defensive coordinator, replacing Aaron Glenn, who left to become the New York Jets

Detroit's defensive coordinator was previously Glenn, who had held down the fort at this spot since 2021. Glenn left to take the New York Jets head coach opening, and it was a return to his roots, as Glenn spent eight seasons of his playing career with the Jets.