Maintaining the playbook when a new OC takes over is just living in the past. That you can't change playbooks or terminology is nothing more than paradigm precipitated by fear of change. I've seen this so often in American industry, it's literarily a cancer. One of the few constants in life is change. Embrace it and you are likely to succeed; resist it and it's nearly a guarantee of failure. A similar paradigm in football is that the offense is too complicated for the QB to call the plays. If the offense is truly too complex for the QB, who’s assumed to be one of the more intelligent players, it's surely too complex for the rest of the team. Everybody in the real world has to quickly adapt to new technology on a constant and real time basis. Are football players incapable of also doing this? The thrust for the team, especially Big Ben, has to be to embrace it, love it, make it an obsession; rather than lamenting it as something painful to endure. I've seen a lot of comments saying keeping the same terminology will lead to consistency. Really? Have you seen anything less consistent about the Steelers than the offense? Throw it all out and start over and I guarantee you will find out who the team players are.