When a core team member who is responsible for a significant amount of work is leaving, it creates a risk for the project due to the potential loss of critical knowledge and skills. The Project Management Professional (PMP) guidelines emphasize the importance of knowledge transfer to mitigate such risks. This involves creating a structured approach to ensure that the departing team member's knowledge is captured and shared with the remaining team members. This can include documentation, training sessions, and hands-on collaboration before the team member's departure1. : "How to facilitate the knowledge transfer" from Project Management Institute1. "Measuring success and sustainability of knowledge transfer in IT rollouts" from PMI2. "Project management collaboration: Knowledge sharing among project managers" from PMI3. "Knowledge transfer in a dynamic project environment" from PMI4.