Article Photos: Second-half performance can be building block for Cowboy defense 30/62

Oklahoma State's Brandon Pettigrew (87) races past Texas Tech's Kellen Tillman (56) for a touchdown during the second 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