The Dallas Cowboys have promoted Rod Marinelli to become defensive coordinator, while keeping Monte Kiffin on the staff as assistant head coach/defense.

"Rod Marinelli's production in terms of creating turnovers and changing field position as a defensive coordinator is well documented." Jason Garrett said in the Cowboys' press release. "Monte Kiffin's overall knowledge and understanding of this defensive scheme will be put to use in mentoring all of the players and coaches on the defensive side of the ball. Monte was brought here to direct a transition in philosophy to the 4-3 scheme, and he will continue to oversee the development of our defense in this scheme."

Marinelli was defensive line coach of the Cowboys in 2013.