Hints: ------ Warm up pitchers in the bullpen before bringing them into the game.
After you pinch-hit for a pitcher, the game will not automatically remind you to sub in a new pitcher. As soon as you take the field, pause the game and bring in a new hurler, or your pinch hitter will be tossing meat.
When fielding manually, a red circle will appear to indicate the destination of a fly ball (except on Superstar difficulty). Place your fielder in the middle of the circle, and he'll raise his glove when he's positioned to make the catch.