Monte Kiffin won't return to the Dallas Cowboys coaching staff a year after he was demoted from defensive coordinator job. A person with knowledge of the decision said Wednesday that Kiffin, the assistant head coach under Jason Garrett last season, wouldn't return. He came in as defensive coordinator in 2013 to implement a scheme change to a four-man front after Dallas spent nearly a decade with a three-man line and four linebackers. Rod Marinelli joined the staff along with Kiffin and was promoted to defensive coordinator in 2014 after the Cowboys had one of the worst seasons statistically in NFL history. More...