The Migration Outlives the Sponsor is the longer version. It sets Jason Lemkin's attendee data against the calendar in The Pricing Migration Sequence: An 18-Month Quarterly Playbook, which opens with four conversations in quarter one and reaches margin recovery in months 18 to 30.
The thing only I can add is the gap in my own document. I checked the playbook and the after-action in Field Report: What Broke When We Killed Our Per-Seat Tier: four named counterparts, six quarters of failure modes, and no line for a counterpart leaving. The one commitment that was built to last, the board narrative with its fixed format, is also on my list of what held. That is the pattern to copy for the other three. It is part of the SaaS to AI Business Models argument: the move to outcome pricing takes longer than a tenure, so the seat has to hold the commitment.