PMP Practice: Ensure Shared Vision with Stakeholders

Brigitte Schäfer-Winkler is leading a project at Volcanic Penguin Works to develop a new AI-powered personalized nutrition app. The executive sponsor wants a detailed 18-month roadmap with fixed deliverables and milestone dates for investor presentations. However, the technical lead emphasizes that machine learning model accuracy is highly unpredictable and will require continuous experimentation. The marketing director insists on launching by a specific trade show date in nine months. During the kickoff meeting, team members express confusion about whether they should commit to the sponsor's roadmap or work iteratively as the technical lead suggests. The sponsor has made it clear that securing Series B funding depends on demonstrating predictable progress. What should Brigitte do to establish a shared vision that addresses these competing expectations?