Thanks to a tip from commenter RyInCBus, we come across this bit of information from the NFL Network’s Michael Lombardi–

Not since the 2002 Buccaneers has a team won the Super Bowl running the pure West Coast offensive exclusively. Seattle was a Super Bowl participant in 2006, but this long drought begs the question: Is the West Coast offense dead? Some teams, like the Saints, Eagles and Packers, run concepts of the West Coast, but they are not an exclusive West Coast team. The only team remaining that is exclusively West Coast is the Browns, and they might want to expand their package to include a more diversified system. The Browns need more playmakers and a better quarterback, but more importantly they need to add to their offense.

Writing about the Browns offense leads me to a game I play every week at NFL Films. I sit in my office in Mt Laurel, N.J., put the Browns offense on my screen and call a friend who was a coach in the league, but is now in between successes. I tell my friend the personnel group, the formation, where the ball is located on the field and what hash mark and describe the motion — if there is any — and ask him to tell me the exact play that will be run. He is correct about 95 percent of the time. No lie. The Browns are so integrated into the West Coast system that their predictability is becoming legendary around the league.