All presidents have advisers and experts on their staff; these men and women are part of the president's team, and are frequently chosen because of their knowledge of certain issues, as well as because the president trusts them. In the end, while the president alone will make the final decision, the president will rely on his staff to do research on issues and give accurate information that can be used in making that decision.
The White House staff serve at the pleasure of the President. They have as much influence as he wishes to give them. The advise him in any area that he seeks advice about They are people whom he knows and has learned to trust, unlike the cabinet who are often appointed mostly for political reasons.
The president's Cabinet is made of the secretaries of the various departments of government. The president also had a White House staff and the joint chiefs of staff for military advice.
White House staff
The president's cabinet, the White House staff, various "czars", Congressional leaders, and other experts all offer their advice when called upon by the President.
I am not sure what "specialized" means here. The President get advice from his cabinet, from the White House staff and the joint chiefs for military advice. Many of them have special skills and knowledge. Some of them were picked for their service to the President's election campaign .
vice president
You bet. The chief of staff serves at the pleasure of the president.
The President's Cabinet refers to the secretaries who manage the 15 major executive departments of the US government. Up until say 80 years ago, the group had regular cabinet meeting with the President , the problems of the day were discussed and suggestion were made on how to solve them. Modern president rely more on their large White House staff for advice on what the President should do.
The White House staff does whatever the president assigns them. The Cabinet serves as an advisory body to the president.
president sec. Deputy cheif cheif of staff white house counselPresident's chief of staff, deputy chief of staff, White House counsel, and press secretary.
The President decides who will be on his staff.
This group is called the President's Cabinet.
The President