Even if we think that the "old guard" should go, how does one go about replacing all of them in such a short span of time? It's not like they can "hire" replac

Even if we think that the "old guard" should go, how does one go about replacing all of them in such a short span of time? It's not like they can "hire" replacements from competitors (like what happens in the corporate world). There is only one State Department and the work they do is very different from any other institution.