How big of a problem was the 3-4?
Read MoreSpeculating about the changes coming to Oklahoma's defensive scheme.
Read MoreEvaluating the success of Oklahoma's 3-4 defensive scheme under Mike Stoops.
Read MoreTwo newcomers will engage in a battle this preseason for a starting spot on OU's defense at SAM linebacker.
Read MoreThe big stories for Oklahoma's defense in the 2016 Red-White Game.
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