When I read the title, I was wondering if Deron would be willing to be Rondo's backup, but quickly realized that it was another one of those threads, where one of the leagues best contracts gets traded for an illusion.
Three reasons this trade should never happen:
1. Rondo is right now a better player than Deron. And while Rondo seems to be improving and adding to his game every season, Deron seems to be stagnant. He may still have a higher ceiling than Rondo, but I wouldn't like to make that experiment in the middle of a season. Rondo knows the playbook better than Doc knows it, and starting over with no practice sessions is just a very bad idea.
2. Both of them are good people, but have issues personality wise. I prefer Rondo's pride and stubbornness, since he appears to be working with those issues, and he is all about winning. Deron seems to blame other people a lot.
3. Deron makes 6 million dollars more than Rondo this year (and even more next year, if he picks up his option ). This means that we probably would have to give up JO, too. Some people would welcome this, but it takes a lot of our depth away.