When a project team lacks the necessary skills to execute, it is essential to address this gap to ensure the project's success. Adding a subject matter expert (SME) can provide the specialized knowledge and skills required to meet the project's objectives. This aligns with the PMBOK Guide's emphasis on acquiring the necessary team to achieve project objectives and the PMP's focus on the importance of human resources in project management. The SME can assist the team in understanding and performing the tasks correctly, thus contributing to the project's success within its hard timeline. : The answer is verified as per the PMP Examination Content Outline, which emphasizes the importance of project human resource management, including acquiring, developing, and managing the project team (1). The detailed explanation is supported by the PMI Guide to Business Analysis, which highlights the importance of ensuring that the project team has the appropriate competencies and skills to perform the work (6).