When a project milestone is missed due to a team member not completing their tasks on time, it is important for the project manager to address the issue directly with the individual involved. A one-on-one meeting allows for a private discussion where the project manager can understand the reasons behind the delay, provide feedback, and work with the team member to develop a plan to prevent future issues. This approach is aligned with the best practices for project human resource management, which emphasize the importance of clear communication and problem-solving within the project team. : = The PMP Examination Content Outline1 and the PMBOK Guide2 highlight the importance of project communication and human resource management. The Professional in Business Analysis Reference Materials also suggest direct engagement with team members to address project challenges3.