He hits the ball hard when he swings at pitches he can do damage on. Some of them are outside of the strike zone (like the rocket RBI single up the middle yesterday). I'm totally fine with him being a free swinger, but only on pitches he can hit hard. The problem with being the worst in the league at swinging at pitches out of the zone is the vast majority of those it's not possible to hit hard unless your Vlad Guerrero Sr. Sosa's ceiling will probably be the mid .600s OPS guy he is now unless he makes this change, and I very much doubt he can.
I hope he makes me look like a big fat idiot by the end of the year, though.