True. And these defensive metrics can be a bit wonky, of course.
Speaking of McGuire, I was watching him catch Bello the other night, and he does have kind of a weird style of catching the ball. He shows the pitcher where he wants it, then moves his glove a lot, presumably to fool the batter. In any case, Bello was having a hell of a time hitting what seemed to be the target. But it was impossible to say if Mcguire had anything to do with it.