I think mature individuals will be able to overlook significant differences in one another and focus on the outcome: helping the team and the business succeed. If I picked up a signal that a candidate wouldn’t meet this bar, I wouldn’t hire them.
Some of these guys hated each other, but, when the boss said "Go!" they put their differences aside, and all gave 110%, to meet the goal. They helped each other out, shared information, and never sabotaged anyone else's work.
Japan has the strongest teams that I've ever seen, but there's cultural reasons, and it would probably not scale to many other cultures. There's also tradeoffs, and many people would not be happy with those.
If you want a culture that is really good at ganging up on a problem, then Japan is a good bet.
They wouldn't dream of testing for "cultural fit," because that is assumed.
