One of your components' managers came to you stating that she cannot find a key stakeholder by email and if she cannot find him, a major decision will be delayed, thus affecting the entire portfolio.

Advising the component manager to send another email perpetuates the same failed communication channel and does not leverage the portfolio manager's authority or capacity to act.

Monitoring the risk is reactive and insufficient - this situation has already become an active issue that requires immediate action, not passive observation.

Escalating directly to executive management is premature when the portfolio manager can and should resolve the communication gap through direct engagement first.

As portfolio manager, you have the authority and responsibility to directly engage key stakeholders to resolve critical communication issues that could delay major decisions. Going in person removes the email bottleneck entirely and enables real-time collaboration, which is the most effective and fastest resolution when a portfolio-level decision is at risk.