> so it shouldn't matter if you have an all Asian team

When there is a team like that, there is invariably sniping about how "X only hire their countrymen".

Groups formed of people with similar life experiences have a greater tendency to fall into group-think that misses out on both giant errors and giant opportunities compared to more varied groups.

And all people aren't the same, you want a mix of minds and skills for most types of work. I'd totally hire someone that couldn't really do that much directly but was fun to be around and connected introverts that have some (potential) synergies in their ideas and generally made the group more productive over all.

Especially in business, the actual (not the managerial) judgment is the collective judgment on the whole groups output and actions by the market. Forging a high performing group out of different people is not the same as maximizing the median metric on some individual test of skill. Like quality, it's a bit undefinable, tho unmistakable when you experience it.

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