Both coaches are currently in Indianapolis for the NFL Scouting Combine, and when speaking with the media, Campbell revealed the key three words necessary for success he gave both Johnson and his former defensive coordinator Aaron Glenn, who was hired as the head coach of the New York Jets.

Bengals pass rusher Trey Hendrickson can seek a trade, but Detroit Lions GM Brad Holmes said that type of move is unlikely. Joey Bosa also available.

Campbell worked closely with Glenn the previous nine seasons. "AG's a superstar," Campbell said at the NFL Combine.

Glenn gets a lot of the earned credit. But Campbell saw the vision, too, and he's thrilled to have Sheppard as his new defensive coordinator.

Detroit Lions head coach Dan Campbell ... your staff," Campbell said. Johnsonhired Dennis Allen as his defensive coordinator, who was most recently the head coach of the New Orleans Saints.