All of those government organizations are under the same management: the government. Subsidiaries are still under the management of the parent firm.

That's not how it works in many countries. You can have regional governments that raise their own taxes and aren't beholden to the central government organizationally, just legally.

This is how it works in the US. Federal/State/County/City.

State governments are very much not under "management" of the federal government.