Watching SF/SEA/WAS excel with the read option I believe most teams will spend some time working on defensing it in Training Camp. Likely only SEA and Was did any real work against it in camp in 2012. It is a copy cat league and I'm sure there will be more teams trying a form of it and drafting QB's who can run it in the future. Will it go the way of the Wildcat, or evolve into a more dominant force NFL wide? IMO it will go the way of the wildcat after the spotlight of success shines on it and Defenses teach to stop it more than a few days before they play a team that runs it.