AMES, Iowa (AP) — Senior Steele Jantz is the most dynamic choice Iowa State has at quarterback. Jared Barnett is probably the safest one. But the safe bet was certainly dynamic in his first start of 2012 and coach Paul Rhoads is sticking with Barnett for Saturday’s game against No. 6 Kansas State (5-0, 2-0 Big 12). Rhoads benched Jantz in favor of Barnett for last Saturday’s game at TCU. Barnett came through with three touchdown passes to senior Josh Lenz as Iowa State (4-1, 1-1) beat the Horned Frogs 37-23. If Barnett can play as well as he did at TCU for the rest of the season, Rhoads will keep starting him.