Baseball is a game of failure. It is inevitable that ALL players will fail.
What separates the average players, from the great players is their ability to deal with failure.
Think about this common scenario at the ball field:
-1st at bat of the game
-Player takes first pitch fastball for a strike
-Players fouls off second fastball down the opposite field foul line
-Player takes strike 3 - a back door slider that was 1 ball outside
-Player slams bat down and mumbles something to the umpire on the way back to the dugout
-Coach yells at the umpire that the pitch was outside
-On deck back batter says "your good" as player storms past
-Mom yells at the umpire "the pitch was outside"
-Dad yells at player to "swing the bat"