 Mack Brown , the head coach of the University of Texas at Austin Longhorn football team , plays a cameo in the episodes . He appears in the pep rally scene , where he is a member of the local community questioning coach Taylor . Brown played without a script because , according to Berg , " you 've heard fathers for 33 years , so you ought to know what to say . " Kyle Chandler , as coach Taylor , was reportedly surprised by Brown 's intensity . 
