My beef is that when you do find what seems to be a genuine example of someone who has underperformed in 'the clutch', it gets thrown out on the grounds of small sample sizes. My preference is to use postseason games vs. regular season games, because it's very simple, for one thing. So I try to use Bagwell and Swisher, who have huge gaps in postseason vs. regular season numbers, and it gets tossed on the 'small sample size' argument. Well, okay, yes, postseason samples are small, comparatively speaking, but how will we ever have a big enough sample?
That's when the old schooler in me understands some of the frustration with the stat people.