it seems unlikely that Elon has achieved any staff changes. It takes time for things like that even once a new exec takes charge, and he's many months from that. "Closing" such a deal will take months, and may never happen. The FTC can block mergers and acquisitions on the claims of anti-trust and has a history of defining exactly what is 'non competitive' and 'effective monopoly' to fit their goals of the moment (aka political objectives). IT could take years to overcome, more than long enough for some other shinny object to attract Elon's attention and fuel his desires.