If a project manager, while in the process of executing the project, realizes the team lacks a particular expertise required to complete an upcoming activity effectively, which of the following would be the BEST initial action in accordance with good practice within Project Resource Management?
Delay the activity until the next project phase while seeking an expert to join the project team.
Inform the project sponsor about the lack of expertise and request a decision on how to proceed.
Proceed with the activity using current team members and capitalize on their ability to learn the necessary skills quickly during the execution of the activity.
Review the resource management plan for guidance on addressing the expertise gap and consider options such as training, hiring, or subcontracting to acquire the necessary expertise.