Cowboys' defensive line keeps showing improvement - Article Photos 27/66

Oklahoma State's Jeremy Smith (31) runs in for a score as Texas' Kenny Vaccaro (4) chases him down during second half of a college football game between the Oklahoma State University Cowboys (OSU) and the University of Texas Longhorns (UT) at Darrell K Royal-Texas Memorial Stadium in Austin, Texas, Saturday, Oct. 15, 2011. Photo by Sarah Phipps, The Oklahoman