Honestly, I wonder if you ever get to the point were baseball starts to shift away from using your best bullpen pitcher just for the "close". If you have 2 on in the 6th with no outs in a tie game. That seems like the place to use a "closer", get out of the real dangerous position and use your best to do it. I had a friend that was really into baseball analytics and said there were a few guys that proposed it, but it hasn't taken off. Who knows, the wild formations took time, but now everyone seems to do it.