In regards to Mariano slamming the door on the opposition...
https://www.retrosheet.org/Research/...fTheCloser.pdf
He was really good at what he was asked to do, I get it, but so was Eddie Gaedel.
Roy Gleason's average at bat produced a WAR of .1. If Mike Trout had a similar average WAR per at bat his career number would be 387 instead of 64.2
Just saying...