Well, if Nate comes back (it isn't in the bag yet), I guess it does help out with Bradley's transition. Still, I'm not sure Bradley was that much of a risk as backup PG. We are, after all, the team that got by with Eddie House for a couple of years and last year let Tony Allen play point guard in key games. I can't imagine Bradley could do much worse, and even if he could, Ray or Paul brought the ball up half the time House or TA were in the game anyway.
Still, I like what Nate brings from a talent perspective; however, as others have said, Tony Allen may have been the more prudent signing. But then again, we don't know what Nate will settle for or what Danny has up his sleeve.
As for Bradley at the 2, I like him as a defender. However, he's even shorter than TA. He's not going to be able to guard 3s. We desperately need someone for that role.