"Co-workers Aren't Friends"? They can be.

Despite the following text, I think you'll find the audio amusing.

The dog-eat-dog pro-athletic / milliscary tribalism that's pounded into kids' minds from a tender age probably carries over to career on a subconscious level. If people work in the same office but completely different departments, with no threat of future competition, that amounts to far less emotional stress or worry of 1upmanship.