In the middle of the execution phase for a big project, a new stakeholder who was unfamiliar with the project joined the board of directors and is influencing the decisions made in the project. This change is impacting the project's progress.What should the project manager do first?

While keeping the client informed is important, it should not be the first action taken. The project manager needs to understand how the new stakeholder will influence the project before communicating this change to the client. Prematurely informing the client without addressing the stakeholder's involvement can lead to confusion and miscommunication.

Revising the project schedule may become necessary later, but it is not the immediate action to take. The project manager should first assess how the new stakeholder's influence may affect the current project plans. Making schedule adjustments without understanding the stakeholder's perspective could result in unnecessary changes and misalignment with project goals.

Updating the risk register is a prudent step but should occur after the project manager has evaluated the impact of the new stakeholder's involvement. Identifying risks without first presenting the project and understanding the stakeholder's position may lead to incomplete or inaccurate risk assessments.