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Learn what land and expand is, why it works, the “land and leave” pitfall, net revenue retention, real examples, and common mistakes.

Learn what backlog refinement is, why “grooming” was renamed, the DEEP framework, how much time it should take, examples, and mistakes.
Learn what a sprint retrospective is, the Prime Directive’s real purpose, the 5-phase structure, named failure modes, and how to run one well.
Learn what a burndown chart is, its origin, why a smooth line can lie, the five diagnostic patterns to recognize, burndown vs burnup, and mistakes.