Tim Cross: 'Let's Get This Work' Posted May 10, 2019 When North Carolina’s football coaching staff lined up in front of its new roster in January, it was the defensive line coach who elevated the first team meeting into a raucous occasion with a passionate speech and a catchy slogan. Tim Cross got his start in college football as a strength and conditioning coach at the University of Texas in 2001 under Mack Brown. (Inside Carolina)