The Dallas Cowboys decided one year with Monte Kiffin as defensive coordinator and Bill Callahan as play-caller was enough. Kiffin was demoted Tuesday in favor of defensive line coach Rod Marinelli, and Scott Linehan was hired as the passing game coordinator who will call plays. The staff shuffling - the second in as many years - comes after the Cowboys gave up the most yards in franchise history and finished last in the NFL in total defense and had their worst offensive output in yardage since 2005. ''And the teams that embrace the change are the ones that have the most success and again we feel like from a system standpoint, the systems on offense and the systems on defense, remain in place.'' Kiffin and Marinelli came to Dallas together last year after the Cowboys fired defensive coordinator Rob Ryan and decided to switch to a four-man front with three linebackers following nearly a decade in the 3-4 defense. More...