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As access to advanced statistics have increased, I have often argued for increased discretion in how analyst deploy their arguments. While the Wins Above Replacement (WAR[P]) construct - the conceptual form of the statistic- maps a compelling all inclusive value metric, our implementations are lacking. Or at least, lacking insofar as the utility and accuracy of the granular statistic is less than the masses perceive.

Today, Matt Swartz published about the cost of a win per position. Using...

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