Sustain & Transfer is executive cadence, coaching, and capability transfer after a sprint has already changed the work. Ninety days by default.
Sustain is not how the engagement starts. It is how it ends.
Not a second transformation. Not staffing the queue. Not an open retainer.
Owner in the chair. Fortress in the room.
Fortress on the edge.
Fortress attends by exception. Exit memo.
You can stop at day 30 or day 60.
Ninety days is the default. We will not run open-ended advisory, or extra hands dressed as coaching. Fortress holds no customer, coverage, clinical, pricing, or payment authority. Partner build agreements stay between you and the partner.
When Sustain ends you stop, or you start a new diagnosis for a new constraint, or a new sprint for an adjacent slice.
Twenty minutes. No deck. No pitch.