This pattern persists because of how consulting engagements get scoped and how organizations buy consulting. The buyer has a visible problem. The engagement gets scoped against the visible problem. The scope is specific, time-bound, and budgetable. The vendor selection, contracting, and engagement management infrastructure is built to support discrete engagements. The structural alternative, an extended infrastructure investment that addresses the conditions producing the symptoms, doesn't fit the engagement model the organization is set up to procure. So the organization keeps buying engagements that match its procurement infrastructure, and the procurement infrastructure keeps shaping the work toward symptom-relief rather than structural improvement. The pattern is reinforced by the structure of how consulting gets bought, not just by how it gets delivered.