Pretentious moi?! You try to raise the level of debate and get an accusation like that you wonder why psychologists don't work with paintballersIt does sound a tad pretentious to me I must say but I doubt Rich made it up, I think he maybe believing it's more profound than it actually is but I'm gonna have a nose around and make sure it's not another one of those ready-made Americanisms that promises to answer everything.
This is basic team cohesion sport psych that is taught to BTEC National Diploma students in the UK. To get a full explanation of Bruce Tuckman's (1965) theory of group development take a look at Weinberg & Gould's "Foundations of Sport & Exercise Psychology"