This is one of the positions-Asst Attorney General of National Security named (4th out of 7 in line in event RR goes down) by Loretta Lynch on Nov 21, 2016. The bench is deep to protect the Deep State- purposely.
The Washington Post had an article that refers to the old order from 2007. Is this purposely misleading?? I think so.
https://www.washingtonpost.com/news/politics/wp/2018/02/09/the-number-three-person-at-justice-is-resigning-heres-how-that-affects-mueller/?noredirect=on&utm_term=.8894b4c56b4a
I believe Lynch went to a lot of bother to spell out who would take over if RR was out for any reason. Trust NONE of them.