Initial observations from Colorado’s 52-0 win over the Oklahoma State Cowboys in a Big 12 showdown in Boulder. 1. Defense rebounds: A week after being “intoxicated by attention,” CU’s defense took their newfound sobriety out on Oklahoma State — with a hammer. Six days following a performance that saw Kansas put up 331 rushing yards, three rushing scores and saw Deion Sanders grumble in Kansas City, the Buffs returned to the form they’d shown at Folsom Field.