I agree with Bro, although Kimi does seem to be more of a team player than a lot of the drivers out there, I would have thought he was more of a replacement for Jenson than Rubens and all the messages seem to imply that Jenson is wanted and wants to stay.
I would have thought Brawn would have been more in the market for Sutil or summat.... but then, that mu opinion, which is right as often as there are fingers on Captain Hook's left hand!