Since the Executive Branch of government is embodied in a single person anyone who works in the executive branch or the military can be fired by the president. The Vice President cannot be fired. The Director of the FBI has a 10 year appointment and the Chairman of the Federal Reserve is considered independent of the government but everyone else is fair game. All of these can be asked to resign.
I may not understand your question, but when Carter was president he worked for the US government and received a salary for his work from the US treasury.
The US has only one president and he is the chief executive over the US government.
By the power of nomination, the president may nominate federal court justices who are then approved by the senate.
The executive branch of the US government is headed by the President.
The President of the United States holds the highest office in the US government
The executive branch of the US government is headed by the President.
The Vice-President is part of the Executive branch of the US government, but he is also President of the Senate, which carries very little power (may break tie votes).
The executive branch of the US government is made up of the president and vice president.
To the extent that there is a single leader of the US government, the President, as head of the Executive branch of the government, is the leader. Because the US federal government is divided into three equal branches, it could be argued that there is no one leader of the government.
The President of the US controls the Executive Branch of the government.
The head executive of the US government is the President, Barack Obama.
No- the president does not have the power to fire people who work outside of government. (As a pre-condition for a TARP bail-out, I think the government asked certain executives of bankrupt companies to resign - that may be what you are thinking about. )