No plan for Afghanistan will work without unity of command: so forget NATO, start pushing its command structure into the margins (preferably into Kabul and its environs, and tell the UN to move over and make room there); and give exclusive control of all US and willing non-US forces (there won't be many, so at least there might be a minimum of friction in that regard) to a single U.S. command with authority for all of Afghanistan. But stick with NATO and the present command structure, and everything that follows is throwing good after bad.