Jason Calvin Garrett (born March 28, 1966) is the head coach of the Dallas Cowboys of the National Football League (NFL). He was the offensive coordinator and assistant head coach of the Cowboys before being promoted to interim head coach after the firing of Wade Phillips on November 8, 2010. Garrett was also a professional American football quarterback in the NFL for the Dallas Cowboys, New York Giants, Tampa Bay Buccaneers and Miami Dolphins. He played college football at Princeton University.