I will admit, strangely so, that I love seeing the combo of Rondo and Bradley to start games. I never thought I would say it due to how much i disliked bradley at the beginning of the year but he is playing a huge role for us this season. Its amazing what some god pressure defense can do for your team. Ray, i think at this point, would be best suited for the 6th man role...
However, I would be worried about him being able to create his own shot with the second unit. Ray is a stellar 3rd or 4th option for us in the starting 5... With the second unit, he would be the number one guy and would be getting guarded by the opposing teams best defender. He cant create his own shot as well as he used to and I fear he would get shut down fairly easily if the opposing teams best defender was playing him tight, especially with Ray being the only real scoring threat of the second unit.