A project has fallen behind schedule. Upon investigation, the project manager determines that team members have implemented requirements relayed via impromptu hallway meetings with the client. Which…

Updating the scope management plan defines how scope will be managed going forward but does not address the immediate problem of changes already being implemented without authorization.

Modifying project baselines is an outcome of formally approved changes, not a corrective action for uncontrolled scope additions that have already occurred.

Change control management establishes a formal, documented process for submitting, evaluating, approving, and tracking all changes to project scope. Without it, informal communications like hallway meetings result in untracked work that inflates scope without updating the schedule or budget. Enforcing this process ensures all future modifications are properly assessed and authorized before implementation.

Informing stakeholders is a communication action that does not resolve the root cause, which is the absence of a formal change control process preventing unauthorized changes.