Product Owner, Product Manager, or Project Owner?

In this AgileConnection article, Scrum.org Professional Scrum Trainer Charles Suscheck discusses the role of Product Owner and if you really want to get the benefit of Scrum, you have to make the mind shift to product ownership, not project management or project ownership. The product owner role is often thought of as being a requirements specifier, when in fact a good product owner is a value maximizer, and a great product owner is a product maximizer.