The main difference was Sastre had CSC all around him, while Cadel's only company from the team was his team car, and some days, I thought that the car was stuck in the gruppetto.
I definately see Evans leaving, just to where is the question. People keep saying Slipstream Chipolte, but I am thinking that you could see him find his way to Team Columbia, because I dont think they ever expect Rogers to be what he is, and Kirchen would be an excellent helper. I have nothing to base this on, just kind of a gut feeling.