Re: Chapman to bullpen not official.
Originally Posted by 757690
Peripherals are by definition not discussing who someone was, or else they wouldn't be called peripherals.
All I care about in discussing who someone was is their actual production that lead to actual runs and actual wins and loses. Anything else is peripheral to the discussion and doesn't tell me who he was in terms of actually helping his team win games.
Peripherals are by sabermetric definition the actual things a player could control-i.e. who the player actual was.
You're actually arguing that youre more interested in what the team was when player X was part of the mix. Viewing things through that filter actually clouds estimates of the player's contribution to team wins.
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