Can you imagine the pressure of being drafted, showing up for minor league camp and trying to perform? The whole process of going through HS, college & the minors will weed out the guys who are "unclutch". I understand this line of reasoning and believe it has some merit, but, at the same time, I think the underlying assumption is specious. Sure, there is pressure to succeed in camps and tryouts and whatnot for personal reasons. But I think pressure from endogenous factors is completely different from exongenous pressure factors. I don't believe wanting to succeed for yourself is terribly comparable to wanting to succeed for yourself and your teammates, all while in front of tens of thousands of fans, with millions more watching. A tryout isn't the same as the World Series. If you fail at the former, you're career path is detrimentally altered; if you fail at the latter, your name may live in perpuitity as a joke (e.g., Bill Buckner). (There was also an excellent point earlier in the thread that everything is relative and compared to your peers that have also gone through the weeding-out process, one might become "unclutch" without changing.) None of this means clutch is currently predictive or any signings or player evaluations should be based on "clutchness."