Explanation
According to the Project Management Professional (PMP) Reference Materials, a project manager should work with the IT team to prioritize the validation and release of the new features. This is because the project manager is responsible for ensuring that the product delivers value to the customer on an incremental basis, as per the agile principles. The project manager should collaborate with the IT team to understand their constraints and challenges, and help them align their work with the product vision and roadmap. The project manager should also facilitate communication and coordination between the IT team and the agile development team, and ensure that the release process is streamlined and efficient. By working with the IT team, the project manager can foster a culture of trust and mutual respect, and avoid unnecessary conflicts or escalations. References: Project Management Professional (PMP) Exam Content Outline, A Guide to the Project Management Body of Knowledge (PMBOK Guide) - Seventh Edition, Agile Release Planning Best Practices for Product Managers, Agile Release Train.