The people problem never ends. For example, people problems arise whenever: (a) stakeholders have conflicting needs; (b) the wrong people involve themselves in the requirements cycle, and (c) occasionally, the analyst gets the wrong requirements and defines the wrong specifications. Beyond these human generated situations, RA is further impacted by the problem of change and the associated problem of creeping requirements.
The Art of Specifying Stakeholder Requirements Part One, Fifth Edition
Duplication and Copying requires the author's peremission.