I wonder if that's what it really means. Statcast is new, "exit velocity" is new, and I'm not sure we really understand what it all means yet. In Mauer's case, I wonder if it's more a lack of really softly hit balls. He rarely hits the ball real hard, but also gets a portion of the barrel on the ball a high percentage of the time, so he doesn't have many really softly hit balls to drag the average down. Few infield popups, few slow rollers. Lots of medium soft humpback liners to left, lots of fairly sharp 2 and 3 hoppers to 2nd. In bowling terms, he's the guy who averages 190 by almost always bowling somewhere between 180-200. He's not the guy who averages 190 by bowling 100, 190, 280. In any case, he's an argument that " average exit velocity" shouldn't be looked at in isolation as an indication of effectiveness. At a minimum launch angle plays a part, and I think eventually they'll be considering spin rate at well. In Mauer's case, the high average exit velocity has added up to .230/.295/.310. Woof. edit: or what taildragger said.