 Some began to see the emergence of a "dynamic trio" in Thompson, Peterson, and Kelly.Heading into the game against Mike Bellotti's Oregon Ducks, Oklahoma defensive coordinator Brent Venables made some major changes to the defensive depth chart after giving up four long running plays through the heart of the defensive line against Washington.The starters at defensive tackle, cornerback, and strong safety were all demoted, opening opportunities for some freshmen to step up.