And replace them with what?
Senate - Kill the filibuster, and replace with a random pool of voting-age civilians, who serve one term of two years each.
Supreme Court - Eliminate it. Judicial review is a mistake.
FBI - Mostly unnecessary. Assign some responsibilities to DHS/ICE.
State Department - Eliminate all diplomats. Collapse SOS duties into VP, make it more of a PM role.
What about my other question, also a random pool of civilians is just asking for disaster. Also eliminating the FBI and the State Department is unhinged.