How do you switch players on mlb 12 the show on PS vita?

To switch players in MLB 12 The Show on PS Vita, use the R button to cycle through players on defense. When batting, you can control the active player by pressing the corresponding button for the player you want to switch to. Additionally, during fielding, you can tap the screen to select a specific fielder if needed. Make sure to practice in the game’s tutorial to get the hang of player control!