I agree with you Golfman - but I also believe there are guys who have something thats hard to measure and just find ways to win. And I believe there are guys with great sabremetric numbers who won't get a look because they don't fit a profile.
Nope, don't have any data to prove either point. Just the way I see and enjoy the game. I can think of one particular player that I once coached and made significant contributions to his team winning a WS in the past 5 years - his saber numbers aren't that great and even negative in one of his team's great years. Yet he played a major role in his team's wins and it didn't surprise me one single bit. That kid is a classic grinder and there's almost no one I'd rather have up when a playoff game is on the line.
If I was building a team for my job, I'd probably go the sabre-metric route as the core. But I'd be looking out for the other guy, the guy with heart that rises up with the game on the line too.