In the face of so much change in the private sector, continued adherence to formal structures in the military seems old-fashioned.

Without a doubt, the chain of command is one of the most durable concepts in military organizations. From Roman times until present, the chain of command fixed formal authorities and accountability from the highest leader to the front line soldier. It made the generation, issuing, and following of orders simple despite the vastness of formations being put to battle. The chain also formalized the separation of officers and soldiers into different castes. As societies industrialized, formal chains of command were instituted in bureaucracy which would become the leading model of organization in the civilian sector.