A prohibition against Czars is one of the reforms needed by the next Republican president. This means agreeing with congress to have a strict hierarchy of who must be confirmed by the senate, and those who aren’t must be under the supervision of someone who is, and is responsible for the actions of that individual.
Other things include a prohibition of Presidential Signing Statements, the “downgrading” of the Presidential Proclamation to having no real authority, strict rules for executive privilege; and for congress to be very willing to impeach and remove from office cabinet officials.
Every dictator seeks to create his own SS preatorian personal guard, and it is what his Csars are all about.