During execution, a team member reports receiving assignments from multiple people and cannot work effectively. What should the project manager establish first in the project governance structure?

The correct answer is a clear Responsible, Accountable, Consulted, and Informed (RACI) matrix. A RACI matrix defines and clarifies roles and responsibilities, which directly addresses the problem of a team member receiving assignments from multiple sources. By establishing who is responsible and accountable for specific tasks, it prevents conflicting directives and improves team effectiveness. While a WBS and timeline (A) are crucial for project planning, they don't directly resolve conflicting assignments. A resource management and conflict-resolution plan (B) is important, but a RACI matrix is a fundamental tool within resource management for preventing role-based conflicts. A risk management and issue-resolution plan (C) deals with uncertainties and problems, but the current issue is a lack of clarity in roles, which a RACI matrix specifically targets.