As a product manager, your roles and responsibilities will change depending on your context, the stage of your product, or your leadership position in the organization. Without a Scrum team or with a smaller team, you might be doing more strategy and validation work for a product that has not been defined yet. With a Scrum team, you might be more focused on the execution of solutions. As a manager of product managers, you might be leading strategy for a larger part of the product and coaching your teams to discover and execute well.