Unfortunately, IT at many companies is an emergent phenomenon - IT emerges more by accident than by design. No one really plans to create the mess, it just happens. There are too many individual decisions; each seemingly logical and defensible, each justified by an apparently well-defined business case, but in reality, each being made using short-sighted, narrowly-focused criteria that ignore the long-term, enterprise-level perspective. Each decision contributes one tile in a mosaic of IT assets with no overall governor to oversee the big, fully-integrated picture.
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