According to the PMBOKGuide, the project manager is responsible for creating a project charter that defines the project purpose, objectives, scope, and high-level risks. The project charter also establishes the project vision, which is a clear and concise description of the desired outcome of the project. The project vision provides a common understanding of the project goals and benefits among the project stakeholders, including the product owner and the agile team. The project manager should share the project vision with the agile team at the beginning of the project and ensure that it aligns with the product owner's expectations. The project manager should also facilitate the definition of the team ground rules, which are the agreed-upon norms of behavior and expectations for the agile team. The team ground rules help to create a collaborative and respectful team culture, foster effective communication, and resolve conflicts. The project manager should ensure that the team ground rules are consistent with the project vision and the agile principles and values. By defining the team ground rules and sharing the project vision, the project manager can help the agile team to understand the product owner's expectations, deliver value to the customer, and improve their performance. References: PMBOKGuide, 6th edition, pages 77-78, 541-542.