A team can, with practice and deliberation, facilitate itself, can measure its own health, can resolve its conflicts and can build itself to some degree I guess. But it’s next to impossible for it to view itself objectively, nor can it challenge itself as good as an external observer and a challenger would.
Author: Darko Spoljaric
User stories have become the norm. They are in the backlog, people create increments based on them, they serve as documentation in some places, and some have even transitioned from use cases and functional specs to user stories.