Both Wilson and Eisenhower entered office committed to reorganizing the US Department of Defense. They succeeded in securing from Congress approval in June 1953 of Reorganization Plan No. 6, which made changes in OSD, the Joint Chiefs of Staff, and the chain of command. Wilson welcomed the reorganization plan, which became effective on June 30, 1953, as facilitating more efficient management of the Department of Defense. He considered the assistant secretaries as his "vice presidents" and tried to manage the Pentagon like an industrial corporation. Wilson took advantage of the reorganization to decentralize administration, giving the service secretaries more responsibility and importance. In his first annual report, he noted that the service secretaries were his principal assistants; decentralizing operational responsibility to them would make for effective exercise of civilian authority throughout the Department of Defense. In July 1954, to complement the 1953 reorganization, Wilson issued a directive to the JCS, the most important provision of which stated that "the Joint Staff work of each of the Chiefs of Staff shall take priority over all other duties," their tasks as chiefs of individual services. The directive also clarified the role of the JCS chairman and his authority over the Joint Staff while making clear that assignment of major tasks to the Joint Staff was the prerogative of the full JCS.