Previously at Uber, Skyscanner, Skype/Microsoft. I love to help people grow and share what I learned. I write longer articles on software engineering at blog.pragmaticengineer.com.
While I both agree that diverse teams are usually higher performing than non-diverse teams and research also supports this, I'm not sure it's fair to say that teams that are homogenous cannot be healthy. In many cases, you can change how people behave, but you can never change their background and past experiences.
The behaviour you described as "us-versus them" and having cliques is definitely something that contributes to an unhealthy team - thanks for sharing! Have you observed other behaviours or characteristics have you for healthy or unhealthy teams?
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While I both agree that diverse teams are usually higher performing than non-diverse teams and research also supports this, I'm not sure it's fair to say that teams that are homogenous cannot be healthy. In many cases, you can change how people behave, but you can never change their background and past experiences.
The behaviour you described as "us-versus them" and having cliques is definitely something that contributes to an unhealthy team - thanks for sharing! Have you observed other behaviours or characteristics have you for healthy or unhealthy teams?