I wanted to learn more about the Cabinet (and as always improve my English ), so I picked the information below from various sites on the web.
The United States Cabinet
includes the Vice President and the heads of 15 executive departments — the Secretaries of Agriculture, Commerce, Defense, Education, Energy, Health and Human Services, Homeland Security, Housing and Urban Development, Interior, Labor, State, Transportation, Treasury, and Veterans Affairs, as well as the Attorney General.
The members of the Presidential Cabinet are expected to discharge the duties associated with the departments they head, while also providing advice and information to the President. The President of the United States cannot be aware of everything that is going at once, since America is a very large country with a great deal of foreign ties, but he or she does need to be kept apprised of major emerging issues, and Cabinet members are part of the team which keeps the President up to date. They also provide policy advice and insight when asked to do so by the President.
Four members of the United States Cabinet are especially important, and sometimes termed the “Big Four.” These members are the Secretary of State, Secretary of the Treasury, Secretary of Defense, and Attorney General of the United States.
U. S. Vice President Joseph Robinette "Joe" Biden, Jr. born November 20, 1942) is the 47th and current Vice President of the United States, serving under President Barack Obama. He was a United States Senator from Delaware from January 3, 1973 until his resignation on January 15, 2009, following his election to the Vice Presidency./Wikipedia
THE CABINET
From left: TOM DASCHLE, secretary-designate of health and human services; ERIC SHINSEKI, secretary of veterans affairs; RAY LaHOOD, secretary of transportation; HILDA SOLIS, secretary-designate of labor; TOM VILSACK, secretary of agriculture; JANET NAPOLITANO, secretary of homeland security; TIMOTHY GEITHNER, secretary-designate of the Treasury.
From left: ERIC HOLDER JR., attorney general–designate; ARNE DUNCAN, secretary of education; SUSAN RICE, ambassador to the United Nations; STEVEN CHU, secretary of energy; KEN SALAZAR, secretary of the interior.
From left: SHAUN DONOVAN, secretary of housing and urban development; ROBERT GATES, secretary of defense; HILLARY CLINTON, secretary of state.
"The Big Four" (Wikipedia) :
Timothy Franz Geithner born August 18, 1961 is an American economist, banker, and civil servant. He was previously the president of the Federal Reserve Bank of New York.
Eric Himpton Holder, Jr. born January 21, 1951. He is the first African American to hold theposition. He previously served as a judge of the Superior Court of the District of Columbia, United States Attorney, Deputy Attorney General of the United States and worked at the law firm of Covington & Burling in Washington, D.C. He was senior legal advisor to then-Senator Barack Obama during Obama's presidential campaign and one of three members of Obama's vice-presidential selection committee.
Robert Michael Gates (born September 25, 1943) . Gates served for 26 years in the Central Intelligence Agency and the National Security Council, and under President George H. W. Bush as Director of Central Intelligence. Hillary Diane Rodham Clinton, born October 26, 1947. She was a United States Senator for New York from 2001 to 2009. As the wife of the 42nd President of the United States, Bill Clinton, she was the First Lady of the United States from 1993 to 2001. In the 2008 election, Clinton was a leading candidate for the Democratic presidential nomination.