End civil service protections. Have any incoming president be able to gut the Deep State infrastructure.
But that would also need to be coupled with a way to prevent the Senate from stopping replacements from being approved, by slow-walking confirmation hearings. We need to change the rules so that six months after nomination, a nominee is deemed approved unless a negative vote is held.
resignations required at all changes of administrations.
However, if we elect representatives that represent "We The People" then the current rules would suffice.
If we continue to elect scoundrels, no rules will bind them.