If only it was as easy as telling a player not to swing at balls. Corey Hart would have been a multiple All-Star and Weeks may be in the HOF. It's like telling a pitcher he's at his best when he doesn't give up any walks or hits. As for Arcia, they addressed one problem, getting rid of most of the pre-pitch movement. It's also obvious they're drilling opposite field into him. He just hits way too many ground balls, and I'm sure they've been working on that too. Hitting consistently at the MLB level is tough, we all know that, but we have to remind ourselves it's VERY difficult. You see the start guys like Goldschmidt have, as one quick example. And he's an All-Star. Arcia does have a quick bat, so there's reason for hope. And, obviously, still very young. All you can do is keep working with him the cage and hope for the best. Maybe he gets hot later in the year, and in the playoffs. Rickie Weeks actually walked a lot and Hart had somewhat decent plate discipline. One reason Arcia hits so many ground balls is the pitches he swings at out of the strike zone. Perez is the same way. I think he has talent as a hitter and combined with his skill on the infield, he could be an everyday starter, but he just flat out refuses to make pitchers throw him more strikes. I just don't get why he won't change this glaring weakness when it impacts his career and earning power so much?