Dan Campbell was Miami Dolphins' interim head coach in 2015, following the firing of Joe Philbin, and leading to a 5-7 record the rest of the season.

With Aaron Glenn off to the Jets, here are five names to watch as the Lions search for their next defensive coordinator.

The New York Jets hiring Aaron Glenn is bad news for former Miami Dolphins coach Brian Flores, who is the Minnesota Vikings defensive coordinator.

Lions LBs coach Kelvin Sheppard is a top candidate to be defensive coordinator, either in Detroit or under Aaron Glenn with the Jets.

The Bears, who interviewed Anthony Weaver for their head coaching vacancy, are going in a different direction.

Miami Dolphins defensive coordinator Anthony Weaver sees his interview with the New Orleans Saints delayed by a snowstorm. Here are successors if he leaves.

The Dolphins won’t have much to spend in free agency, but that doesn’t mean they can’t find reliable help for relatively cheap.

With Ben Johnson becoming Bears head coach, we wanted to know: Who was last Detroit Lions coordinator hired as a lead man? Some guy named Don Shula.

Mike Vrabel is acting quickly to fill out his coaching staff with the New England Patriots, hiring Detroit Lions defensive line coach Terrell Williams

There's another former Miami Dolphins assistant who has become an NFL head coach, and there was a ripple effect for a current Dolphins coach. The Chicago Bears

The Lions should try to re-sign Zeitler this offseason, but if the veteran decides to depart Detroit in free agency, the Miami Dolphins would be an intriguing landing spot for the former Wisconsin ...

GM Brad Holmes was the same way. His superpower was his ability to identify talent. Not managing people. So, after Campbell was hired, he jumped into the pre-draft preparations, working with Holmes.