Series preview: Gold Glove Brewers

Photo by John Fisher/Getty ImagesIt took me a little bit of study to understand why the Brewers are 18-13 and how that seemingly good and obviously better-than record could be a big problem for the 13-17 San Francisco Giants this weekend. I’ve settled on this: they are good, but probably not the feeling that accompanies “five games better” than the Giants.

You think the Giants are bad against left-handed pitching (.226 - 24th) ? The Brewers are worse (.208 -26th)! Only the Yankees (.320) have a worse slugging percentage against lefties than the Giants (.342) and Brewers (.332), and if you change the measure from batting average and slugging percentage to wRC+, it gets worse for both teams:…