From Whitehouse.gov, POTUS's memorandum of June 14 identifies order of succession within the CIA and REVOKES Obama's Sept 2016 memorandum re succession of CIA.
Memorandum on Providing an Order of Succession Within the Central Intelligence Agency
Issued on: June 14, 2019
Excerpt:
(c) Notwithstanding the provisions of this memorandum, the President retains discretion, to the extent permitted by law, to depart from this memorandum in designating an acting D/CIA.
Sec. 3. Revocation. The Presidential Memorandum of September 16, 2016 (Providing an Order of Succession Within the Central Intelligence Agency), is hereby revoked.