The bottom line is, I can only see Smart gaining more confidence, getting better and better. Unfortunately for Rondo its also thanks to him, bc he is teaching him how to view the game.
We really don't know what is Danny's plan A, B, C when he got smart. I'm sure there is a secret flowchart somewhere. But i can't see him have both Smart and Rondo as the teams starting pg for the next 2-3 years. IF smart looked completely lost, couldn't even defend, the decision would be easier (try to keep Rondo). But Smart has made a bigger impact than most ppl have expected. Like someone else has said already, when he is dialed in, the other guys are also able to raise their games also. It's like the KG effect