STILLWATER — As an assistant for five seasons at Oklahoma , coach Kevin Sumlin faced Oklahoma State with bigger, faster and better players. On Saturday night, he faced the Cowboys as a first-year coach at Houston. The end result was a 56-37 loss at Boone Picken Stadium after the Cougars led 16-14 at halftime. Afterward, the affable Sumlin wanted no part of comparing his Houston team and past OU squads. "Th...