Who is the 3rd or 4th in charge at the DOJ right now? Maybe Trump already maneuvered a good guy into those positions. Who is the District Attorney for the Eastern District in neighboring Virginia? The guy who replaced Dana Boente? He could be the temp who runs the DOJ for awhile.
I don't care who is in charge as long as they do the job right, and not zealously and improperly prosecute Repubs because they don't like their politics. I don't think it is rocket physics. :)