Oklahoma was fortunate to keep cornerback Aaron Colvin and do-everything offensive Swiss army knife Trey Millard, who I'd expect to get a whole lot more touches next season. He was criminally underused in the Sooners' offense this past season. Just ask Texas if Millard should get more touches.
Oklahoma's offensive renaissance should be interesting. There won't be major changes, but Stoops is always going to build around what his personnel does best, and next season, likely with Blake Bell at the helm, you can expect the quarterback running game to be featured. It's still likely going to be a pass-first offense, but with Millard and Bell, next season's team might be a little more physical between the tackles.
I'd agree with Haney in that the top of the Big 12 looks really weak for 2013, which may provide opportunity for the Sooners to make a Big 12 title run, despite all the losses.