Ian Greengross is a professional sports agent for NFL players, football coaches and hockey coaches. Throughout his 25-year career, Greengross has represented premier NFL talent like Darren McFadden, Joseph Addai and Damien Williams. Along with players, he's also represented dozens of coaches like Karl Dunbar of the Pittsburgh Steelers, Marc Crawford of the Chicago Blackhawks and Kenechi Udeze of the Tennessee Titans.