To address the lack of trust in agile within an organization, it is often effective to start with a pilot project.
This allows the organization to see the benefits of agile in action without fully committing to a large-scale transformation. A pilot project can serve as a proof of concept, demonstrating the value of agile delivery and helping to build trust among skeptical business units. It provides an opportunity for the organization to learn and adapt the agile framework in a controlled environment, which can then be scaled up based on the success of the pilot12.
References:
Trust-the key for successful delivery using agile methods1.
How to Build Trust to Enable Agility | Scrum.org2.
Exam PMP topic 1 question 911 discussion3.
How to Choose a Pilot Project for Agile Transformation4.

The project manager should assess the influence and power of the employee to determine if they will add value to the project. This involves considering the employee's experience, skills, and the relevance of their recommendation to the project's objectives. The project charter, which has been recently approved, provides the project manager with the authority to make such assessments and decisions. It is important to align the employee's capabilities and the project's needs to ensure that their involvement will contribute positively to the project's success.
Project Management Institute. (2023). A Guide to the Project Management Body of Knowledge (PMBOK Guide) - Seventh Edition.
Project Management Institute. (2023). Project Management Professional (PMP) Certification Handbook.

According to the PMBOK Guide, 7th edition, one of the principles of project management is to focus on value. This means that the project manager should ensure that the project delivers the most valuable outcomes to the stakeholders, especially the customer. In an agile project, the sprint goal is a short-term objective that aligns with the customer's needs and expectations. The sprint backlog is a list of tasks that the development team commits to complete within the sprint to achieve the sprint goal. If the developers want to deviate from the sprint backlog and work on something else, the project manager should remind them of the importance of focusing and meeting the sprint goal. The project manager should also facilitate a discussion with the product owner and the development team to clarify the priority and value of the tasks in the sprint backlog and the refactoring work. The project manager should help the team to balance the trade-offs between delivering the sprint goal and improving the quality of the product. References: PMBOK Guide, 7th edition, page 9 (Principles of Project Management); page 71 (Focus on Value); page 137 (Agile Project Delivery); page 139 (Sprint Goal and Sprint Backlog)

When a risk materializes and becomes an issue, the project manager should work with the relevant stakeholders to implement the risk response plan that was prepared during the project's planning phase. This is in line with the PMI's principles, which suggest that risks should have predefined response plans that can be activated when they occur. The implementation of the risk response plan is a proactive step to address the issue and mitigate its impact on the project1.
References:
* Project Management Institute (PMI) standards and publications.
* PMBOKGuide - Sixth Edition.
* "Plan Risk Response for Your Projects" - Project Management Academy2.
* "PMP Exam Strategies for Risk Response: Mitigate Risk, Avoid, or Transfer" - Project Management Academy3.
* "Risks vs Issues: Why most projects fail" - PMI4.
* "The Difference Between Risk and Issues in Project Management" - iZenBridge5.

As per the Project Management Professional (PMP) guidelines, when a project is nearing completion, the project manager should first confirm that the definition of done (DoD) has been met. This means that all project deliverables have been completed and approved. Only after this confirmation, the project manager can move on to the next steps such as documenting lessons learned or planning for a new initiative.