Easy Strikeouts
Change the pitching type to 'Classic'. During game play, go to the 'Game Options' menu and change all their 'Take Strike' settings all the way up and 'Take Ball' down. This will give you the easiest way to get a strikeout. This will not stop the batter from swinging. He will still swing occasionally.
Put legends on any team
First, purchase two Classic Teams from the Skybox after obtaining enough challenge points. Then go to "Team Rosters" and scroll to one of your Classic Teams. Highlight any player and choose to trade that player. From the Trade Players screen, press L2 4 times and Legends teams will be accessible to trade with. Complete a trade with your Classic Team. Now you can just trade a Legend from your Classic Team to any existing regular MLB Team.