The pitchers have made the adjustment on him, and he has been unable to make an adjustment in return, which is the name of the game. They pound him on the outside corner, and when you try and pull that pitch, you're going to hit a routine groundball to short. If you watch our best hitters (Braun, Fielder) they take that ball the opposite way, which makes them much more difficult to pitch to. I would say Corey Hart is having the same problem as Hardy. All that, combined with the fact that both seem to be pressing and swinging at pitches out of the zone, makes for a slump.