Harry Truman actually said...

"In fact, many of the problems with which they deal require close collaboration with the agencies of the Executive Office."

"I transmit herewith Reorganization Plan No. 4 of 1949, prepared in accordance with the provisions of the Reorganization Act of 1949."

"Within their respective fields these agencies assist the President in developing plans and policies which extend beyond the responsibility of any single department of the Government."

"In this they play a role similar in character to that of the various units of the Executive Office of the President."