Strong answer
Treat this as stakeholder risk before it becomes usage risk.
- Override the green health score with a manager-reviewed stakeholder risk note.
- Map the replacement's authority, evaluation criteria, and prior competitor bias.
- Create a business-case recap that uses confirmed outcomes and names missing proof.
- Ask power users for workflow evidence that matters to the replacement, not just usage comfort.
- Align Sales and CS on a re-onboarding conversation before procurement starts.