Information and Organization

The flows of communication and information are critical to the effective operation of an organization, and if they don't flow effectively, things don't get done, or get done badly. This would suggest that the structure of the organization should be set up to maximally encourage information flows, and that IT organization should parallel the rest of the structure. But there are other things that go on in organizations other than communication, aren't there? What might some of them be? And should communication really rule? What are some things other than communication flows that might be the basis for organizing people and work, and why might we want to give them priority over communication facilitation when we set things up and manage work?