Article Photos: Big 12 Championship by the numbers: Sooners only convert one third down 73/73

OU's Ronnell Lewis brings down Nebraska's Tim Marlowe during the Big 12 football championship game between the University of Oklahoma Sooners (OU) and the University of Nebraska Cornhuskers (NU) at Cowboys Stadium on Saturday, Dec. 4, 2010, in Arlington, Texas.  Photo by Bryan Terry, The Oklahoman