@taskmaster4450le's thread

I dont know the regulations but this is not a true agency. If that were the case, Trump could only appoint Musk who would then have to be confirmed by the Senate.

This is more like a Presidential commission which have advisors who recommend policy to the administration.

If Musk was joining the cabinet, Senate confirmation would be required.

As for the basis of your question, I dont know the procedure on Secretaries and their holdings.