This is much like the way I imagine any army is organized. The business divisions are analogous to individual fighting units, which are provided with blankets, paychecks, aerial surveillance, intelligence, and so forth by the functional organizations, which supply such services to all fighting units. Because each such unit does not have to maintain its own support groups, it can concentrate on a specific mission, like taking a hill in a battle. And for that, each unit has all the necessary freedom of action and independence.
