TEMPE, ARIZONA – SEPTEMBER 25: Head coach Karl Dorrell of the Colorado Buffaloes watches from the sidelines during the second half of the NCAAF game against the Arizona State Sun Devils at Sun Devil Stadium on September 25, 2021 in Tempe, Arizona. (Photo by Christian Petersen/Getty Images) As a competitor, Karl Dorrell can’t stand losing. Colorado’s head football coach showed some fire after an Alamo Bowl loss to Texas in December.