The article on MSN.com says she'll appear in enough episodes to "tie up loose ends". How those ends get tied up remains a mystery. I thought the character of Ziva David was an improvement over the Caitlin Todd character of Sasha Alexander. And I thought the character interaction between Tony and Ziva and Gibbs and Ziva have improved the storylines. I wonder who they'll bring in next? Sometimes change is good and the series improves - like I thought MASH did years ago with the final cast.