Visible crew/equipment: While Palmer and Ducky are with the deceased in Autopsy, just as Jimmy mentions that Keller only dated models and A-list celebrities, the reflections of the camera operator and camera are visible on the steel door. (00:26:40)
Visible crew/equipment: While Tony and Ziva are speaking with Tom Crawley about Taylor, the red and green tape marks are visible on the floor in overhead shots, such as when Crawley stands up. Also, near the end, while Gibbs, Ziva, and Tony are with Crawley and the models, more tape marks are visible again. (00:19:20)
Revealing mistake: The shot when Gibbs shows up to the scene, as Ducky examines the "deceased" girl, you can see a pulse in her neck. (00:07:00)
Answer: I hadn't seen the backdoor pilots yet but while it wasn't explicitly stated, at least onscreen, I heard somewhere Vivian got either fired from NCIS due to jeopardizing a case, got resigned from the agency, or transferred to the FBI.
Raykvega423