STAGE 1: Observe the system
Concept: Separate an impediment from an individual blame story.
Task: Map the team’s work states and record three observations without assigning motives.
Acceptance: Describe an observable behavior and impact for each observation.

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STAGE 2: Clarify Done
Concept: Acceptance criteria belong to a particular item; Done is a shared quality standard.
Task: Draft a Definition of Done covering review, testing and usable documentation.
Acceptance: Show one item that meets acceptance criteria but is not Done.

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STAGE 3: Facilitate an experiment
Concept: A retrospective should produce a testable change.
Task: Design a 30-minute retrospective and agree one WIP or testing experiment for the next Sprint.
Acceptance: The experiment has an owner, measure and review date.

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STAGE 4: Review the evidence
Concept: Improvement is not proven by a busier team.
Task: Compare completed work, work-item age and unfinished testing before and after the experiment.
Acceptance: Discuss confounders and avoid equating velocity with individual productivity.

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