"So we'll see what happens.” There's a wait-and-see approach with many of the secondaries across the Big 12 — including the Sooners and Cowboys — where elite passing games are quick to expose deficiencies. Oklahoma boasts one of the best safeties in the country in Nic Harris. And Lendy Holmes is a fine running mate. Still, the Sooners are not only replacing both starting corners, next-in-line Dominique Franks and Brian Jackson are mostly unproven. Same with the backups, Jonathan Nelson and Jamell Fleming. Junior college transfer David Sims, considered a key component in OU's nickel package, will likely be late to camp, potentially hindering his progress. But redshirt freshman Sam Proctor was solid in the spring. The Sooners don't lack for confidence, even in a conference overflowing with talented passers. "Whatever quarterback that's on the schedule,” Harris said, "is who I like playing against.” At Oklahoma State, three starters return to what might be an underrated unit . Jacob Lacey, entering his senior season, emerged as a solid corner late last season. Perrish Cox, the other corner, is now a junior who could be on the verge of a breakout. Ricky Price made a smooth transition from receiver to free safety, starting all 13 games a year ago. OSU lost a fourth starter when Andre Sexton shifted down to the hybrid linebacker spot, but Quinton Moore has experience and juco transfer Lucien Antoine is being counted on to make an impact.