In the wake of a three-game straight-up slide, UCF has replaced QBs. Jacurri Brown, who got his feet wet last week, steps into a daunting situation. Playing in Ames is no cakewalk, especially against an undefeated host whose defense ranks 15th in yards permitted. Only one Cyclones' foe has exceeded the teens in scoring -- and that was just for 21. The Knights are 1-3 outright against Power Five opposition. The lone win was by a point. A Cyclones win seems almost a given, and a margin of victory by two TDs seems less than a stretch.