Roughly 15 percent of my hometown is instinct. If we have enough people we split raid groups into 2-3 groups by teams. We normally get valor players who already have good Pokémon of that type offering to play with the instinct folks to give them enough people to take down the boss and get the bonus.
it takes balance of cooperation and competiveness to be successful at the game. No team will get ahead by brute force alone.
Take gyms under the current system, you need other players help to be successful. Be that feeding berrys to help your pokemon stay motivated or to knock the Pokémon out of a gym so you can get coins, it is a cooperative system.
While you yellow guys might not have the numbers it isn't an insurmountable task to be successful. Of our 4 strongest players in terms of Trainer level it goes
The gal from the mystic team is formidable and motivated. She has a good sense of humor and dishes out comments as well as she takes them. It is all in good fun but still we have mutual respect and cooperation.