I would agree with the idea of game planning. The only thing I would add is that the planning would also take into account the first-pitch tendencies of the opposing starter.
But to me all the armchair managing we like to do can be comical. I remember when I was a kid watching baseball games how often I would be thinking 'Why did he swing at that?' when the pitch was six inches out of the strike zone or something. It didn't really dawn on me how difficult it is to size up a baseball being thrown at up to 100 miles an hour, or with all different sorts of spin and movement, from 60 feet 6 inches away.
Ted Williams said it, hitting a baseball is the hardest thing to do in sports, and he was a pretty good authority on the subject.