One to petition the Ministry of Light for a bulb, 50 to establish the state production quota, 200 militia to force the factory unions to allow production of the bulb, and one to surreptitiously dial an "800" number to order an American light bulb.
Three: one to write the light bulb removal program, one to write the light bulb insertion program, and one to act as a light bulb administrator to make sure nobody else tries to change the light bulb at the same time.