Oklahoma's Daryl Williams, right, works out opposite teammate Tony Feo, left, for NFL scouts during Oklahoma Pro Day in Norman, Okla., Wednesday, March 11, 2015.
Oklahoma's Daryl Williams, right, works out opposite teammate Tony Feo, left, for NFL scouts during Oklahoma Pro Day in Norman, Okla., Wednesday, March 11, 2015. Sue Ogrocki AP
Oklahoma's Daryl Williams, right, works out opposite teammate Tony Feo, left, for NFL scouts during Oklahoma Pro Day in Norman, Okla., Wednesday, March 11, 2015. Sue Ogrocki AP