During a product release a vice president from another product line raised a valid concern that required work before release; they had not been involved earlier and their request delayed the release. What should the project manager have done earlier in the project?

The vice president's valid concern and subsequent delay indicate a missed stakeholder. Identifying all relevant stakeholders early in the project is crucial for gathering requirements, managing expectations, and preventing late-stage issues. Had the vice president been identified as a stakeholder, their concerns could have been addressed proactively, potentially avoiding the release delay. Documenting concerns in a risk register is a reactive measure; the primary issue was not identifying the stakeholder in the first place. Communicating project boundaries is important but wouldn't necessarily identify an overlooked stakeholder. Escalating disagreements is a conflict resolution technique, not a preventative measure for stakeholder identification.