This is the second post in a series that I began awhile back in an attempt to break down the advanced concepts developed by the saber metrics movement, into more concise and relatable terms. If you missed it the first post can be found here, it covers the idea of stockpiling value as opposed to talent. In this post I’ll tackle the rapidly evolving view of how a catcher can impact the game on defense, and how the Marlins very own J.T Realmuto stacks up.
Now the most traditional way to evaluate a catcher’s performance is how effectively they control the running game.