Can one person be both a Product Owner and a Product Manager? After spending nearly three years combining the role, I have now come to the conclusion that the answer is no. It is an “or” – you are either a Product Owner OR a Product Manager. Now, that is not to say that one cannot grow from one role to the other, but trying to perform both functions at the same time can be counter-productive. Here are the reasons that have led me to this conclusion.