This happens. If you look back at the origins of the T-formation, it was absolutely unstoppable. Chicago used it in their 73-0 NFL Championship Game win over the Redskins. By and large, it's been mostly abandoned in the intervening decades, along with it's variant, the Wishbone. In another thread, I mentioned the run and shoot, responsible for Andre Ware's Heisman. Again, something unstoppable at the time which is no longer widely used. New schemes come along and have some success, then are modified and incorporated as principles in a broad-based conventional attack. Does anyone use pure West Coast Offense anymore? Not really, but West Coast principles are a part of nearly all passing attacks. Spread is becoming the same way. Eventually, you need a diverse offense with as many methods of attacking the defense as possible. When you limit yourself to one scheme, eventually someone figures out how to stop it. Once that book is written, you're done. The book on the Rich Rod spread may not be at the publisher yet, but the final draft is just about ready.