You use the film to analyze what the QB does well and what he does poorly. You use it to isolate him from the surroundings. That's what QB evaluation is. So when I said for years that Tannehill is really good at P/A passes and would put up great numbers in a system that used more of that, it was based on my analysis of his film. I was not surprised that when he went to a system that asked him to do more of what he did well he played much better. It was never about volume. It was about the system.