I always cringe when I hear the word "resource" instead of "team member."

Point of fact: chess is learned but only to a point, probably around 2100-2150 ELO. That is the limit of what most people can accomplish with a lot of study and hard work.

Pushing beyond that and into the Super to Elite Grandmaster range (2550-2800) requires extraordinary levels of memory, concentration, calculation and pattern matching. Levels that can't be instilled in someone through any amount of training. A person either possesses them or (s)he doesn't.

I lack the evidence at hand, but I'm certain I've seen it before that aptitude in those areas correlates strongly to high intelligence.

I think Kasparov disagrees with you via "...working hard is also part of an individual’s talent"

though to be fair he follows with

"I think working hard is sometimes just as important to having a talent."

http://www.chessbase.com/newsdetail.asp?newsid=6069

You don't only lack the evidence, I think it is fair to say that the evidence contradicts your opinion. If you look at people like Judit Polgár, it seems like practice is far more important than any kind of intrinsic ability.