You are correct. Huber reprets directly to Sessions.
Reports.
Hehehe. Everybody reports to DAG Rosenstein.
Except reading Sessions' March 29, 2018 letter, Sessions tasked Huber, and if there are any questions, contact Sessions. There is ZERO mention of Rosenstein in that letter. A significant omission, if you ask me. And notice that Wray is named as part of Sessions' senior management team.
Sessions has recused himself from everything.
He reports to Rosenweasel.