Contrary to traditional management methods, an Agile approach considers the team to be a single cooperative unit. Individuals are not scored on the amount of work completed, but the team is monitored as a whole. This serves to improve team cohesiveness and ensure that anyone working on a project is dedicated to the success of a project through collaboration. You are all in this together.
The product owner is the individual responsible for establishing a common vision. This person is often the sponsor or customer of the project. The owner must be the lead in identifying features (Stories) and prioritising the workload such that the highest value is being delivered.