University of Colorado Boulder’s head coach, Karl Dorrell, during the Colorado Minnesota NCAA football game on September 18, 2021. (Cliff Grassmick/Staff Photographer) Colorado fans, Karl Dorrell knows you’re frustrated. Guess what? He is, too. And, so are the Buffaloes players. Yet, while fans call for firings or demotions or a new quarterback, Dorrell doesn’t believe the struggling offense needs an overhaul.