I read somewhere that the Cubs coaching is saying that he is hidding the ball better...whatever that means. I guess if you can't see it, you can't hit. Maybe it means he was tipping his pitches before and that's been corrected now. Sounds more like a motion-thing to me. Like the batter can't see the ball until later in his motion. Seems like that could make a pretty decent difference. That was one of the big things in Hill's emergence when he first came up. His 89-91 mph fastball wasn't visible until the last possible moment, giving it the reaction time of a heater several mph faster(especially coupled with a slow curve). Sounds like the same thing with Samardzija.