It doesn't say he must have any at all. It refers vaguely to "the principal officer in each of the executive departments", but doesn't go into any detail about what those departments might be, what their various duties are, or even how many there should be.
How many positions in the president's cabinet in 1950?
The U.S. President's Cabinet has no elected positions, so no one elects them. The President appoints them based on his own reasons regarding their areas of expertise or career/personal history. The Cabinet is truly the President's "team." Their chief duty is to advise the President, however they have many other duties as well.
When George Washington was President, there were four cabinet positions. As of 2002 there are fifteen:Secretary of StateSecretary of the TreasurySecretary of DefenseAttorney GeneralSecretary of the InteriorSecretary of AgricultureSecretary of CommerceSecretary of LaborSecretary of Health and Human ServicesSecretary of Housing and Urban DevelopmentSecretary of TransportationSecretary of EnergySecretary of EducationSecretary of Veterans AffairsSecretary of Homeland Security
50
The purpose of the Cabinet is to advise the President on matters relating to the duties of their respective offices. As the President's closest and most trusted advisory, members of the Cabinet attend weekly meetings with the President. The Constitution does not directly mention a "Cabinet," but the Constitutional authority for a Cabinet is found in Article II, Section 2. The Constitution states that the President "may require the opinion, in writing of the principle officer in each of the executive departments, upon any subject relating to the duties of their respective offices." The Constitution does not say which or how many executive departments should be created.
The senate then holds confirmation hearings on the president's nominees for cabinet posts. The nominee to head each department appears before the Senate committee that oversees the department to answer questions about his or her background or views.
Pres Washington made 4 cabinent mebers, today there is 14
11
16
There are 15 cabinet departments. There are also several cabinet-level officers including the Vice-President that advise the President as well.
Does the Constitution provide for the Cabinet? Not directly. Constitutional authority for the Cabinet comes from Article 2, Section 2, which says that the president "... may require the opinion, in writing, of the principal officer in each of the executive departments, upon any subject relating to the duties of their respective offices." Similarly, the Constitution does not specify which or how many executive departments should be created.
There are fifteen Cabinet members and eight Cabinet-level positions (including those for the Vice President, the Chief of Staff, the Administrator of the Environmental Protection Agency, the Trade Representative, the Ambassador to the United Nations, the Chairman of the Council of Economic Advisors, and the Adminstrator of the Small Business Administration).