Even with the best and most complete of models and frameworks, the practice of Enterprise Architecture (EA) in organisations isn’t always effective. Analysis does not always explain everything that happens, and changes that Enterprise Architects (EAs) make do not always deliver the expected benefits. When EA does not deliver value as expected, or when it cannot be represented as a transparent cause and effect relationship, some EA defenders draw our attention to long delays in the enterprise’s adoption of information technology. In light of this, EA should be thought of as an investment against things that might otherwise go wrong — kind of like a ‘flu shot for 2025. Other apologists blame flaws in the EA frameworks and methods used, or in the way that they are used.