When designing an organisation, most people think of the big questions. Is it a product or functional organisation? How do you balance the need to be local for customer responsiveness or increased cost control vs the need to be global for functional excellence or improved innovation. It is all about ensuring the strategy can be delivered. Trade-offs need to be made, so design criteria created to help make those.
Once the big picture, or Macro design decisions have been made, what about the detail? An analogy is the planning process for building a house. It is important to sort the themes, answer the big questions first. How many rooms? What budget? Look & feel? Once this is done, equally important is to then sort the detail. Lighting & electrics; plumbing; finishes.