1. Rob McQuown said...

    Brian is too kind to me in this article, but the idea of measuring the impact on GDP’s by catchers is something I’ve used in my Strat-O-Matic card ratings for years, and I was happy to talk through putting it into a real-life metric with him. I think he’s come up with some good stuff here – much has been done before, but this is well-compiled and weighted.

    Separating out pitcher influence is obviously the hardest part of measuring catcher defense, but the San Diegeo example he uses in his article points up that even with pitchers who have an extreme impact, the difference in catchers can be seen, though it’s not often you get to compare two guys as far apart on the spectrum as Blanco and Hundley.

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