If Bradley doesn't start out of the gate (still recovering from injury), I could see Lee winning the starting spot. He seems to fit with what Ray was doing here.
If Avery's not ready to go for the start of the season, I see Lee as the starting two guard. I don't like the idea of starting Terry and Rondo together. Defensively, I think it could be problematic. Also, I think Terry is more valuable off the bench as a back up point guard who can also fill in some at the two guard.
However, when Avery returns, I see him winning the starting role, not necessarily because he is better than Lee, but because Lee makes more sense off the bench due to his ability to play some three.
Basically, Terry's the combo guard, Lee is the combo wing, Green is the combo forward, and Wilcox is the combo big. I like the idea of those four guys coming off the bench, filling multiple roles.