Despite a relatively smooth administration, Lovett felt a growing dissatisfaction with the existing defense organization. Although he recognized that real unification could result only from an evolutionary process, not from legislative edict, as the end of his term approached, he discerned the need for changes in the National Security Act beyond those made in 1949. Commenting about unification at a press conference a week before he left office, Lovett observed that the Department of Defense would have to be reorganized substantially if the United States became involved in a major conflict. He put forward his recommendations in a long letter to President Truman on November 18, 1952, proposing clarification of the secretary of defense's relationship to the president, the Joint Chiefs of Staff, and the military departments; redefinition of JCS functions; reorganization of the military departments; and reorganization and redefinition of the functions of the Munitions Board and the Research and Development Board.