I don't see any team giving up a top 10 pick for Rondo, I'm mostly just dreaming.
Smart operates best off the dribble, and he does so at a truly elite level. I'm not sure Rondo wants to give the ball up just to watch Smart create his own shot at the rim. And defenses would just double up on Smart and leave Rondo open for the long jumper he definitely doesn't want to take.