Corporations rely on specialisation, outsourcing and tacitness. Specialisation is here to manage complexity, outsourcing here to evacuate complexity and tacitness here to hide complexity. It is not perfect. Specialisation impeaches getting the big picture. Outsourcing concretely relocates knowledge out of the organisation. Tacitness prevents management as "you can't manage what you can't measure" and favours egocentric "political" games. Besides those defaults, it offers managers a simple life (and very similar to the one of a Museum keeper).
Specialisation is a natural result of complexity. In organisations, the diversity and recurrence of tasks call for dedicated people to limited actions. The bigger the organisation, the more specialised employees are.
