Former NFL head coach and Super Bowl champion with the St. Louis Rams' "Greatest Show on Turf" Mike Martz joins Next Up to talk about Houston Texans quarterback C.J. Stroud. He's a "once in a lifetime quarterback," Martz said. When asked about what's the hardest part of coaching a rookie quarterback, Martz says it's "the pressure of playing well" and the task of "teaching him the game at a different level."