Check out the latest MLB 2K11 Developer Diary #3. Designer, Shawn Bailey covers pitching and hitting.
Quote:
"Through the Pitcher Control slider, you can change the concept of control to be more or less challenging. This new slider will allow you to customize the pitching experience to your liking. This is a sensitive slider that will make it noticeably easier or harder to throw strikes. And don’t worry,we are not disabling achievements this year if you change the sliders. It’s your game and it should be played however you want to play it."