Answer:
The Cabinet of the United States of today is, in essence, an organism composed of several Departments of the Executive Branch, thus keeping the same essence as the original Cabinet created by George Washington as a group of advice and consultation of the President.
The truth is that the course of time has modified the priorities and tasks that the Federal Government must develop, which has also modified, created or deleted several Departments.
The Washington Cabinet, in addition to having its Vice President, John Adams, had a Secretary of State, a Secretary of the Treasury, a Secretary of War, and a Attorney General.
Today, the Trump Cabinet maintains those figures (the Secretary of War has been renamed Secretary of Defense), but also has added other officers: the Secretary of the Interior, the Secretary of Agriculture, the Secretary of Commerce, the Secretary of Labor, the Secretary of Health and Human Services, the Secretary of Housing and Human Development, the Secretary of Transportation, the Secretary of Energy, the Secretary of Education, the Secretary of Veterans Affairs, and the Secretary of Homeland Security.
As can be seen, the Cabinet has expanded, taking into account the new needs that the nation and the American society have every day.