[lemarchr]

Why do you consider this to be a mistake? I've thought about this in the past, but can't really articulate my motivations, and in the end I haven't followed through. Some of my previous colleagues have fit into the gap between co-worker and friend. I would never spend time with them outside of work and since we no longer work together I'm not sure what I'm really missing, so I'm curious to hear your thoughts.

[danielheath]

Those connections become invaluable as you reach the point where you are responsible for putting a new team together / growing one.

[rramadass]

Opportunity loss. I came across the phrase "increase your surface area of luck" somewhere and it is relevant here.

I am guilty of the same.