In an agile project, it is crucial to continuously assess the project's direction and priorities to ensure alignment with business objectives and adapt to changes in the business environment. Reprioritizing the backlog after every iteration allows the project manager and the team to evaluate the value and relevance of user stories in light of any new developments or changes. This practice ensures that the project remains focused on delivering the most valuable features to the business and can adapt to changes quickly and efficiently.
(Professional in Business Analysis Reference Materials source and documents) A Guide to the Project Management Body of Knowledge (PMBOK Guide) The PMI Guide to Business Analysis Business Analysis for Practitioners: A Practice Guide