Host the plan where everyone can see it, comment, and propose edits. Track changes with dates and owners. Reduce meetings by linking to artifacts directly from the page. Teach new teammates the launch story by reading it together during onboarding.
Run a short meeting centered on the page itself. Each owner summarizes progress, blockers, and next experiments using the exact words on the document. Keep the ritual predictable and kind. End with commitments in writing so momentum carries beyond the call.