For far too long, the “F” in football around here has stood for failure with a capital F. The boring Broncos? A joke. The bumbling Buffaloes? A laughingstock. For far too long, the football season in our corner of the mountain time zone has been rocky, to put it mildly. But all that misery? Clown time for the Broncos and Buffs is over. Sean Payton and Deion Sanders will make football fun again in Colorado. I don’t need to guarantee it, because the new coaches in charge of the operation in Denver and Boulder won’t accept losing. Sanders stood up Friday and preached to more than 1,500 CU boosters at a kickoff luncheon.