It seems to me that this is a fight between the "what-ifs" and the "actually happeneds."
Yes, if Konerko wasn't there, Alexei's D may have been worse than it was.
Yes, if Dye, Rios and Jenks hadn't struggled in August and September, the Sox may have been in it.
Yes, if Quentin and Peavy were healthy the whole season, then the Sox may have made the playoffs again.
Unfortunately, those things never happened and the Sox ended up in 3rd place last season.
Speculation is fun, but honestly arguing over it isn't very productive. People should save their anger for things that do happen, not things that didn't that they think should happen.