The US elected government has no control over the unelected civil servants as congress over the past 150 years did everything they could to prevent the spoils system.
The rule of law and checks and balances also means these elected officeholders don’t have arbitrary control, which has a lot of upsides (and produced a professional and effective federal workforce) as well as some limits.
I swear we have a problem where we quantize to caricatures rather than recognizing tuned balance, and control theorists would probably anticipate this means things will start to swing a bit wildly.
Fractional direct appointments are the usual case in any large organization. If you're the chief executive, you don't hire individual department workers, you might not even pick individual department management, you probably pick other "C-level" staff and have them manage management personnel most of the time.
It's more like a captain of a ship than "an ant driving an elephant." Every avenue you have to direct the ship depends on a network of knowledge and relationships supporting steering and operational systems. You don't DIY turning the tanker, you team-turn the tanker because you've learned how to work with a team.