Backlog refinement, story splitting, definition of ready, and working with a product owner.
3 questions in Business Analysis.
The analysis does not shrink, it changes container: elicitation, rule-finding and precision now land in refined backlog items and acceptance criteria at the point of build. What a specification gave you free — traceability, cross-cutting requirements, a scope baseline — you rebuild on purpose.
Separate what cannot be released from what cannot be built, because the two are almost never the same thing. Then slice along business dimensions such as workflow step, rule variation or customer segment, and hide the incomplete parts behind a toggle so the release stays whole while the build arrives in pieces.
Sort the decision by reversibility rather than by who is senior enough to make it. Decide the reversible ones yourself in writing, build the cheapest option that keeps both answers available where you can, and record an assumption with an owner and a deadline rather than a silent guess.