Gibbs was a position coach, and it's the position coaches that make any system work. What Kubiak is doing isn't radical play design, it's good coaching by him and the coaches under him. It's attention to detail. It's accountability. It's, rather than asking each player to just beat the man in front of them, it's telling them to do their job, the way they are being taught, and trust that they will win--and defining what "winning" means.