 In the same year, he set up the Defense Supply Agency to work toward unified supply procurement, distribution, and inventory management under the control of the Secretary of Defense rather than the uniformed military.McNamara's institution of systems analysis as a basis for making key decisions on force requirements, weapon systems, and other matters occasioned much debate.Two of its main practitioners during the McNamara era, Alain C. Enthoven and K. Wayne Smith, described the concept as follows