NORMAN, Okla. (AP) Oklahoma changed defensive coordinators mid-season, yet the results have been painfully familiar.

The past two weeks under interim coordinator Ruffin McNeill, the Sooners have been forced to try to win shootouts in the fourth quarter. No. 6 Oklahoma defeated Texas Tech 51-46 two weeks ago, then fought off a late 2-point conversion attempt to defeat Oklahoma State 48-47 on Saturday night . Statistically, those performances haven't been much different than the 48-45 loss to Texas that got defensive coordinator Mike Stoops fired.

The Sooners' offense has continued to purr, with quarterback Kyler Murray continuing his run at the Heisman Trophy. But they know the defense still isn't where it needs to be for Oklahoma to have a shot at a national title.