https://screenrant.com/ncis-vance-replacement-laroche-season-24-story-set-up/

The NCIS Season 23 (https://forums.primetimer.com/topic/159630-s23e20-sons-and-daughters/) finale (https://www.reddit.com/r/NCIS/comments/1tbcatu/ncis_season_23_finale_sons_and_daughters_episode/) unveiled a frontrunner to take over as the new director from Leon Vance, setting up a new crisis for the main characters.

NCIS's Forgotten Legend From 23 Years Ago Is Vance's Perfect Replacement (https://screenrant.com/ncis-jag-harm-rabb-leon-vance-replacement-perfect/)

As the search for Leon Vance's replacement continues in NCIS, CBS's best bet is bringing back a forgotten franchise legend as its new director.