When a team member leaves unexpectedly, especially in the advanced stages of a project, it can introduce risks to the project’s schedule, cost, and quality. The Project Management Professional (PMP) guidelines suggest that the project manager should proactively engage with stakeholders to discuss a mitigation plan. This involves analyzing the impact of the departure, identifying alternative strategies, and updating the project management plan accordingly. It is essential to involve stakeholders in this process as they can provide insights, resources, or support that can help in addressing the situation effectively.

(Professional in Business Analysis Reference Materials source and documents)

Please note that while I can provide information based on the PMP and PMI-PBA guidelines, I cannot access external websites to verify specific content from the provided links. My response is based on general principles outlined in project management and business analysis standards. For detailed and specific verifications, please refer to the latest editions of the PMBOK Guide and the PMI-PBA Handbook available on the official PMI website.