Use a fixed-scope sprint when the first problem is clear and the goal is to define or deliver a focused outcome. Use a retainer when priorities will shift and steady support matters more than one tightly bounded deliverable. Use a dedicated team when there is an ongoing product or platform roadmap that needs continuity and execution capacity. The right model depends on clarity, stability, internal ownership, and pace of change.
Frequently asked questions
When does a fixed-scope sprint make sense?
When the first problem is clear and the goal is to define or deliver a focused outcome — useful for proving a workflow, validating an approach, or producing a specific first build.
When is a retainer the right engagement model?
When priorities will shift and steady support matters more than one tightly bounded deliverable. Useful for ongoing improvements, evolving products, and operational systems that require continuous care.
When is a dedicated team the most efficient choice?
When there is a real product or platform roadmap with continuity. A dedicated team is the most efficient model for sustained build velocity over multiple quarters.