Re: Pitchers and Catchers
I haven't heard of teams these days where the Manager, Catchers, and Pitchers do not sit down before each game and go over exactly how they are going to pitch to opposing hitters (maybe not the pitchers who can't hit). Adjustments are probably made during the game, but I imagine they're committed to what they went over before the game.
The Pitcher is still responsible, though, in the end. The catcher and pitcher both need to gauge the effectiveness of each pitch at any given time in the arsenal of the pitcher, and might have to change their approach based on that. It's pretty rare where a Pitcher's complete arsenal is in sync from the very beginning of the game.
I love watching an intelligent hitter work a pitcher and catcher into throwing him exactly the pitch that he wants. The best I ever saw at this was Edgar Martinez, the greatest DH ever. Most people do not realize that Martinez is the only right-handed batter to win 2 batting titles since Joe Dimaggio. It's very difficult for right-handers to do that.