Don't fool yourself, they are still running the WCO, Shanahan style. Only changes are to the blocking scheme. They went from zone to man with the Oline. They go back and forth from Zone to man on the Oline. The routes are still WCO. The routes are the same. The QB can play under center, pistol or shotgun. Even Peyton was in shotgun something like 80% of the time when Dennison was his OC.