Should you organise teams around Dunbar’s number?

business-team

Oxford professor Robin Dunbar suggested that the maximum number of meaningful social connections a human can maintain is around 150. This is why some many traditional societies and communities are based around a group of roughly that size. Any bigger and the social connections break down, leading to a breakdown in cohesiveness and morality.

Recently this number has been adopted by the technical community. Those following Spotify’s Tribes model often aim to get a tribe below 150 people, and many co-working spaces are designed around having 150 tenants.

The problem is that this does not seem to make any sense to me. 150 is supposed to be the maximum number of total social connections you have. If I look at the connections I maintain it consists of family, friends, people I know from volunteering and community groups, and work colleagues. If we assume a roughly even split between the four of them, that means I can maintain a maximum of 37 meaningful relationships at work.

If your company is a cult, that requires you to terminate all contact with your former life when you join, 150 makes the perfect size for a team. However, assuming you are a normal company, 150 does not seem to be the magic number. Even if you say “Okay, but people do not need to know everyone in the tribe”, that’s fine, but 150 is still irrelevant as a number. The perfect team size is likely to be something else.

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This entry was posted on Tuesday, August 23rd, 2016 at 10:37 am and is filed under Science. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.