I was wondering if anyone who knows things about things could explain why BABIP is given so much weight when rating a players hitting ability. I understand that anytime you put a ball in play there is a lot of luck involved, but, without having any data, I feel that a good hitter like Buster Posey who hits a lot of line drives to all fields would be less likely than the average bear to make outs on balls in play. Or on the other side of the coin, Aubrey Huff the last couple of years grounded out to second every single at bat that didn't end in strike out. He wasn't getting unlucky. He was bad. I also would assume that a fast player, regardless of hitting caliber, would reach at a higher clip, being able to reach on more poorly hit grounders than, say, Huff could. Am I wrong? Or did I just blow your mind? I assume this is so five years ago, but would appreciate any illumination on the subject.