A project manager is newly assigned to the second phase of an ongoing project. During the implementation, a defect occurred and no one knows how to fix it, as the former engineering team has moved…

Checking organizational process assets (OPAs) is a good practice for information gathering but will not directly provide the necessary technical expertise to fix a defect when the knowledge holders are gone.

Updating the risk management plan addresses the process of managing future risks, but does not solve the immediate and ongoing problem of a critical defect that no one can fix.

Acquiring knowledgeable resources is the most immediate and critical first step because the core problem is the absence of expertise to resolve a known, recurring defect impacting the schedule. Without the right skills, other actions like checking OPAs or updating plans will not directly solve the technical problem at hand.

Extending the timeline of the project is a potential consequence or mitigation strategy, not the first action to resolve the defect and prevent further delays.