cranny, it is not hard to understand in this case. You take a AA pitcher and put him in the bigs. He finds out that no matter how hard he throws, if he catches too much of the plate they will knock his head off. He has not yet, if he ever will, learn how to reliably catch the black so he errs on the side of not getting his head knocked off. I am sure that if you were that guy you would do the same.