Every quarter, Oracle Fusion changes - your financial controls, your procurement workflows, your reporting logic, your access structures. For most public sector organisations, that rhythm isn't a feature; it's a pressure point. Regression anxiety and dependence on specialist knowledge quietly accumulate until something more serious sets in: Transformation Erosion - the slow reversion to legacy workarounds that bleeds away the ROI your cloud investment was supposed to deliver. If you hold accountability for Oracle Fusion and want to know whether your assurance model is strong enough to survive a 2026 digital mandate, this is worth reading in full.