Article Photos: Second-half performance can be building block for Cowboy defense 36/62

Oklahoma State quarterback Zac Robinson (11) tries to get past Texas Tech's Kellen Tillman (56) during the first half of the college football game between the Oklahoma State University Cowboys (OSU) and the Texas Tech University Red Raiders (TTU) at Boone Pickens Stadium  on Saturday, Sept. 22, 2007, in Stillwater, Okla. 

By CHRIS LANDSBERGER, The Oklahoman