The heavyweight matchup in the current iteration of the Red River Shootout between Texas and Oklahoma is unquestionably Steve Sarkisian‘s Longhorn offense going against Brent Venables‘ Sooner defense. Both coaches were National Championship-winning coordinators at their previous jobs. In one instance, Venables secured a National Championship by winning head-to-head against Sarkisian in the 2017 College Football Playoff National Championship. Sark was with Alabama at the time, initially he was serving an analyst but was promoted to coordinator the week before the game after head coach Nick Saba…