The project manager should use the manage team process to optimize team performance and enhance project activities. This process involves tracking team member performance, providing feedback, resolving issues, and managing team changes. One of the tools and techniques for this process is conflict management, which is the application of resolution techniques to minimize the negative aspects of conflict and enhance the positive aspects of conflict. The project manager should use conflict management skills to resolve the differences with the key resource and build a good working relationship based on trust and respect. This will help ensure project success and foster a collaborative team environment. Monitoring the key resource closely throughout the project, but not letting the project sponsor know about the conflict (option B) may not be effective or ethical, as it may create a sense of distrust and resentment between the project manager and the key resource.
It may also prevent the project sponsor from providing support or guidance if needed. Requesting that the key resource's functional manager work directly with the resource during the project (option C) may not be feasible or appropriate, as it may undermine the project manager's authority and responsibility. It may also create confusion and conflict among the team members and stakeholders. Discussing this with the project sponsor and requesting that this key resource be replaced on the project (option D) may not be the best option, as it may cause delays and disruptions to the project. It may also damage the relationship between the project manager and the key resource, as well as the key resource's functional manager. Moreover, the key resource is needed to ensure the completion of a major component for the project, so replacing them may not be easy or desirable. References: (Professional in Business Analysis Reference Materials source and documents)
* PMBOK Guide, 6th edition, pages 349-350, 9.4 Manage Team
* PMI, PMP Exam Content Outline, 2021, page 10, Domain II: Process, Task 8: Manage project team members and their assignments
* PMP Practice Questions #56 - iZenBridge