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.

Dan Campbell is promoting Kelvin Sheppard to Detroit Lions defensive coordinator, filling void of Aaron Glenn, who took New York Jets head coach job.

The Lions already hired Kacy Rodgers as the new run game coordinator and defensive line coach. Rodgers is taking over for Terrell Williams, who left Detroit to become the defensive coordinator of the New England Patriots. Read all the best Lions coverage at the Detroit Free Press and Lions Wire.