Product owner

As product owner…

You must	Own, elaborate and communicate the product vision
	Formulate the unity of purpose
You must not	Manage the work of others

Own, elaborate and communicate the product vision

…business representatives best understand the business needs. It is next to impossible for teams to rely on their initial understanding of the domain.

Formulate the unity of purpose

…many teams have rocky beginnings as people struggle to work together.Team members may come from different backgrounds, with different experiences. Therefore, the product owner ought to instill a common product vision and unity of purpose in all members of the team.