Major revisions included a change in reporting channels directed by the Secretary of Defense which placed the agency under the management, direction, and control of the Assistant Secretary of Defense for Manpower, Reserve Affairs, and Logistics. As part of various organizational changes during this period, officials eliminated depot operations at the Defense Electronics Supply Center in 1979 and began stocking electronic material at depots closer to the using military activities. The Defense Industrial Plant Equipment Center was phased out in the late 1980s when responsibility for managing the Defense Department's reserve of industrial plant equipment was transferred to the Defense General Supply Center in Richmond, Virginia. Another major mission came in July 1988 when, by presidential order, the agency assumed management of the nation's stockpile of strategic materials from the General Services Administration. Soon after, DLA established the Defense National Stockpile Center as a primary-level field activity. In 1989, the military services were directed to transfer one million consumable items to DLA for management. The 1980s brought other changes as well. On October 1, 1986, the Goldwater-Nichols Reorganization Act identified DLA as a combat support agency and required that the selection of the DLA Director be approved by the Chairman of the Joint Chiefs of Staff. The act also directed the Office of the Secretary of Defense to study the functions and organizational structure of DLA to determine the most effective and economical means of providing required services to its customers. It helped the agency's mission evolve from functional concerns (e.g. inventory management, contract administration) to operational concerns (e.g., enhancement of materiel readiness and sustainability of the military services and the unified and specified commands). Further implementation of reorganization recommendations, especially from the Goldwater-Nichols Act, resulted from Secretary of Defense Richard Cheney’s Defense Management Review report to the President in July 1989. The report emphasized improving management efficiencies in the Defense Department by "cutting excess infrastructure, eliminating redundant functions and initiating common business practices". After the implementation of the Defense Management Review decisions, DLA assumed some of the military services’ responsibilities, such as inventory management and distribution functions. A Defense Management Review-directed study recommended the consolidation of DoD contract management. Although DLA had received responsibility for administering most defense contracts in 1965, the military services had retained responsibility for administering most major weapons systems and overseas contracts. On February 6, 1990, DoD directed that virtually all contract administration functions be