I have a great idea that will never be implemented...ever. I want MLB closers to have professional wrestling entrances when they are called into the game.
Imagine the fan fare as Enter Sandman blares through the new Yanks stadium and Mariano Rivera steps through a cloud of smoke. Fireworks erupting around him and batters trembling.
Furthermore, I want the closer's entrance to be secret. I want him to be warmed up in a private bullpen. Then, as the middle reliever walks a batter, music fills the ballpark.