Free safety David Sims , who signed with Oklahoma last year but never made it to campus due to academic issues, has committed to Iowa State and is expected to sign with the Cyclones, according to the recruiting Web site Rivals.com . Sims, out of Oroville ( Calif. ) Butte College , was expected to transfer to OU and compete for the nickel-back spot in the Sooner defensive backfield this past season. But Sims w...