The Lions have fired Offensive Coordinator Mike Martz and promoted Offensive Line Coach Jim Colleto and Wide Receivers' Coach Kippy Brown to run the offense in his place, a source in the organization told ESPN's Chris Mortensen. Colleto will be named offensive coordinator and remain as the offensive line coach, while Brown is being promoted to assistant head coach and passing game coordinator, and will also serve as running backs' coach. Martz confirmed his firing to the Detroit Free Press.