The role of the president’s cabinet is split into two broad categories: advising the president on issues to do with policy, and carrying out any agreed upon plans. U.S. Cabinet members are given the title of Secretary.
In the United States, the president is the head of state and ultimately responsible for the things that happen while he is in office, but it is impossible for him to manage every area of government personally. To facilitate management, each department of government is represented by a cabinet member. Each department is then in a better position to advise the president on issues that have to do with specific areas of governance. The president is thus able to make informed decisions about these departments without being directly involved in their day-to-day operations, and the cabinet members carry out plans accordingly.