This is a letdown spot for Colorado. They are coming off a wild OT win over rival Nebraska last week (just one week off a rivalry blowout win over Colorado State). I think it is going to be tough for them to get back up against a tricky Air Force team. Troy Calhoun's team, on the other hand, has had two weeks to prepare for this one. This is a veteran team and they are 20-6 ATS in their last 26 nonconference games. Colorado is just 2-5 ATS in its last seven overall and they have been outgained in each of their first two games. I like AF in an upset here so take the +3.5 as a nice underdog.