Comment by Barrin92

>This is how most foreign services are run

It is not. The vast majority of the world has a professionalized diplomatic corps roughly modeled on a Prussian or French system. As Fukuyama points out in Political Order and Political Decay the US is an odd case because it democratized before it developed an administrative state and as a result is somewhere between "Greece and Prussia" and ended up with a spoils-based and clientelist system, somewhat moderated by the Progressive era.