So just how much do the Red Sox need another right-handed hitter, anyway? As Alex Speier points out in a mode of analysis I’ve never actually encountered before but love, the single most valuable thing a hitter can do in Fenway Park is pull a ball to left field. That’s obvious based on the eye test (because, you know, there’s that big wall out there) but Speier gives us the actual numbers: righties who pull balls in the air at Fenway produce a batting average of .643 (!) and a slugging percentage of 2.147 (!!!). That’s the best slugging percentage for any kind of hit, in any ballpark in baseball.