
Continuity mistake: On the stakeout, Parsons asks McGee what the tracker on his phone does. When he does so, he takes a drink from his cup straw. When the shot changes, he is no longer having a drink. (00:08:40)

Continuity mistake: When being questioned, they put a picture on the table in front of Ziva. In this shot, she has her arms on the table, palm up. When the shot changes, her hands are now palm down. (00:21:20)






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