I think the pitch calling is underrated. That makes them very predictable, sometimes, and make them easy to hit. My guess is that the coach (Hottovy), the pitcher and the catcher discuss about the strategy for the next game together. Buy, during the game, the catcher is the most important, because they call most pitches. Of course, the pitcher has to pitch the way it's called, but no pitcher can do that 100% of the time.