I think it is even simpler than that, type A and type B people. How many serious pool players do you know that are good at taking orders or working on a team? I worked OK on a team because I cut out my own task or tasks. I was fine with somebody over me giving a task, not so good if they tried to micromanage the task.
I can't think of a single dedicated pool player that I would call a type B personality. Same with circle track racers, and competition shooters. They are fine with them against the field, not so good on a team. We did well with the Mosconi Cup because we were much better players early on. When european skill caught up a little bit then their much better ability to function as a team got us in trouble and keeps us in trouble. Hard to battle somebody for every dollar for years and then be pardners. The US guys and gals can't do it. We are citizens, not subjects. As my friend in Scotland used to tell me all the time, that is a big difference!
Hu