Your champion is the person who bought your product, advocated for it internally, defended your budget in reviews, and trained their team to use it. They're the reason you're in the account.
When they leave, you are not in a stable situation.
The statistics on post-champion churn are sobering. Accounts that experience champion departure in the 90 days before renewal churn at 2-3x the rate of accounts with stable champions. The risk is especially high when the champion was also the economic buyer, when they were the primary user, or when they leave under negative circumstances.
The critical mistake CS teams make: treating champion departure as a data entry update. They note the change in their CRM, add the new contact, and schedule an intro call. They don't treat it as the account risk event it actually is.
The champion departure protocol that works:
Move immediately. Contact the departing champion before they leave if possible. Get an introduction to their successor. Get permission to stay in contact with them at their new role (future customer pipeline).
Find the new champion fast. The window to establish a relationship with the incoming decision-maker is the first 90 days. After that, their working patterns are established and your product either fits or it doesn't. Show up with value, not onboarding.
Rebuild the ROI narrative for the new stakeholder. Your previous champion already understood the value. Their successor doesn't have that context. Start from scratch with a fresh ROI briefing tailored to what the new stakeholder cares about.
Multi-thread immediately. An account with a single champion is a single point of failure. Champion departure is the forcing function for expanding your relationship to multiple stakeholders. Do it now.
The champion will leave someday. Have a plan for when they do.