It also doesn't show if his target is inside with a FB, he hits his target, and the batter just happens to be looking for an inside FB that he hammers. Losing out on the guessing game won't show up in the pitch charts, but it's a reality of the game. Over time, the quality of a pitcher's stuff (velocity, movement, deception) will determine how often he gets hurt when he loses out in the guessing game, or how often he gets away with a mistake. Beckett looks fine to the eye, the data on his stuff doesn't suggest any degradation of quality, and he's demonstrating the same levels of dominance (K/9, BB/9) he was during his good stretch this year. I don't think there is a problem.