While team managers in PRINCE2 are primarily responsible for the production of the work packages assigned to them, they may also provide valuable advice on tailoring the methodology to better manage these work packages within the specific context of the project. Their practical experience and direct involvement with project delivery can offer insights into how PRINCE2 can be adapted to enhance efficiency and effectiveness at the team level.
PRINCE2 Foundation Manual

During the Managing a Stage Boundary process, the Business Case is used to justify the continuing viability of the project. This involves reviewing and, if necessary, updating the Business Case to reflect any changes or new insights that might impact the project's justification. This helps the Project Board make informed decisions about the future progression of the project.
PRINCE2 7 Foundation handbook and official documents.

A minimum requirement for applying the quality theme in PRINCE2 is keeping a record of all planned quality management activities. This requirement ensures that there is clear documentation of what quality checks will occur, who will perform them, and how they will be executed, which is fundamental for maintaining control over quality assurance throughout the project. References: PRINCE2 Foundation Handbook, Quality Theme section.

To monitor the progress of a stage effectively, the project manager should review both the Highlight Report and Checkpoint Report. The Highlight Report provides a summary of the stage status to the Project Board, detailing overall progress and identifying any major issues. The Checkpoint Report, on the other hand, offers detailed updates from team managers or team members on the progress of their respective Work Packages.
Together, these management products give a comprehensive view of stage progress.
(PRINCE2 7 Foundation Handbook, AXELOS)

According to the 'defined roles and responsibilities' principle in PRINCE2, the project management team must represent the business, user, and supplier interests. This ensures that all critical viewpoints are considered in decision-making processes, aligning the project outcomes closely with organizational needs and stakeholder expectations. References: PRINCE2 Foundation Handbook, Defined Roles and Responsibilities section.