Take what you want from spring training. I tend to write off poor performances by veteran pitchers, who seem like they are just trying to work on control more than anything else, and veteran hitters, who seem to work more on honing their timing and their sense of the strike zone.
It's a little surprising that a lot of people are worried about the White Sox' new ace Jake Peavy. I do think Peavy may have some difficulty initially with homerun balls at the Cell, but only relatively speaking for a guy who has been otherwise extremely hard to hit over his career. In any case, I expect the notoriously tough competitor to adjust very quickly by pitching certain types of power hitters different than he might have in San Diego's big Petco Park.
I'm not worried at all that Peavy lost a game to the Charlotte crew yesterday because he actually did well--seven strikeouts in just four innings and no walks. The three earned runs in that stretch are about as bad as it gets for Peavy, and something the Sox line-up should be able to overcome.