Posted by jrd_x on 2/29/2012 8:06:00 PM (view original):
I'll agree that ERA is flawed because it relies (though less directly than WHIP) on BABIP.
This is the part that has me continually shaking my head.
It's not that BABIP is flawed - it's just an incomplete stat. The numbers are accurate, but they're not an accurate reflection of ability because they don't measure everything. WHIP does. The only reason BABIP is a useless stat on its own is because it's a FRACTION of a WHOLE. WHIP is that WHOLE. When you have WHIP, it is completely pointless to even consider BABIP a stat.
It's like some of Mike's ridiculous examples. If you can measure HRs, does it really matter how many a guy hits in the daytime vs. at night? How many he hits into the upper deck as opposed to the first deck? You could get reliable numbers on those things, but they don't factor into any debate of how good a guy is, because we have the WHOLE stat we can look at - total HR.
WHIP is not the ultimate stat - but it's very accurate and reliable in telling us how many baserunners a pitcher allows. Couple it with ERA and you can get a very good sense of how effective a pitcher is. A perfect sense? No. That's why we have other stats and that's why we watch the games.
Some ideas for jrd to continue working on: Quality vs Quantity, and Partial vs. Whole.