Attrition alone would make a huge difference.
Exactly, no new hires unless it is a mission critical position, and then promote internally and don’t back fill that emptied position.
Throw in a major civil service reform with some teeth for incompetence and criminal activity and you can rein in the hidden fourth branch of government. It has to be done now because they have too much on the rank and file Republicans and Democrats. They know where the skeletons are buried, with Trump they can’t play that game. It has to be done now.