It's not the OBP. .331 is mediocre, although it is about 30 points higher than his career. It's the SLG - .522 and the isolated power - .228 (SLG-BA). That slugging is higher than all of our regulars, including RZ, Morse, and ALR. It only trails Moore among Nats with over 50 plate appearances. It leads all qualified MLB SS by over .070. That is incredible (In contrast, his OBP is only 7th, behind the likes of Jamey Carroll). His ISO is not only the best for all shortstops, it is about 30th for qualified MLB position players, right around the ISO's for Mark Trumbo, Cody Ross, Carlos Beltran, Mark Reynolds, and Mark Teixera. Those are some big boys he's bashing with.