Explanation
According to the PMBOK Guide, 6th edition, page 141, the project manager is responsible for managing the project scope and ensuring that the project deliverables meet the agreed requirements and expectations of the client and other stakeholders. If the project manager discovers that the blueprints received from the client are incomplete, the first thing to do is to consult with the client to clarify the requirements, scope, and expectations, and to determine if the project execution should be continued, modified, or terminated. The project manager should not continue the project execution using the current blueprints, as this may lead to rework, waste, scope creep, or poor quality. The project manager should not reschedule the project execution date, as this may affect the project schedule, budget, and resources. The project manager should not escalate this issue to the project sponsor, as this may undermine the trust and communication between the project manager and the client. The project sponsor should be involved only if the issue cannot be resolved by the project manager and the client. References:
PMBOK Guide, 6th edition, page 141
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