Trump should order Sessions to order another special counsel to investigate the corruption in DOJ. Muller, Rosenstein, McCabe and probably others should live the rest of their lives in prison for sedition.
He should appoint another one and order Mueller to suspend his probe pending investigation.
I would skip Sessions, and just write the order myself to add a special counsel and to only report results to the House of Representatives. And I would list Sessions as a potential person in conflict.