[consteval]

Those teams develop strong social bonds precisely because their manager doesn't request (force) them to be 10% more vulnerable. That's a 1-way ticket to a bunch of people not liking you.

You can achieve that vulnerability via being a likable and honest person. I think often us technical-minded people forget that relationships aren't an optimization problem and don't respond like you think they would. Just being decent and trustworthy will take you there, saying things like "you can trust me guys!" often has the opposite effect.