Article Photos: Oklahoma football: After years of preaching calm, Bob Stoops sharpens the guillotine 1/2

NATIONAL SIGNING DAY / SIGN / SIGNED / LETTER-OF-INTENT SIGNING DAY: University of Oklahoma head football coach Bob Stoops speaks during a press conference on National Signing Day at OU on Wednesday, Feb. 6, 2013, in Norman, Okla.  Photo by Steve Sisney, The Oklahoman