Well, he could play it like Obola did and appoint czars - avoid that whole ridiculous senate confirmation fight, especially since there are so many pub traitors in the senate, that way.
“Lawyer Czar” instead of AG. Title 28 isn’t that specific about how the FBI is organized. There are probably other federal laws which mention an FBI Director but maybe Trump’s “Lawyer Czar” could use Presidential authority to command the FBI Director.