There are only three roles in Scrum. Either you’re part of the team, and you’re doing the work, or you’re a Scrum Master, helping the team figure out how to do the work better, or you’re a Product Owner. This is all laid out in the appendix. The Product Owner decides what the work should be. He or she owns the Backlog, what’s on it, and, most important, what order it’s in.
