Other than as far as depth charts go, the addition of Terry (with the assumption of Lee being a Ray Allen replacement) is actually the Dooling replacement. Just because Terry is not bad enough to be an end of bench player doesn't mean we should ignore the upgrade.
All I am talking about is depth chart. Dooling was valuable, because he gave us an extra body, who could play the 1 or 2 in case of injuries.
With Bradley out, we are now 2 deep with NBA players who can play PG (Rondo and Terry). It will be less of an issue when Bradley comes back, but even then, given that Bradley is also the backup SG, it isn't a ton of depth.
That is an issue. I think Lee is much more capable of playing SF, than he is of playing PG. So, we are 3 deep at SF (Pierce, Green, and Lee), which isn't bad.
Again, if we're talking in comparison to depth chart, Dooling's role from last year has been replaced by that of Jason Terry. The only thing is that Terry is higher on the depth chart than Dooling. But as far as being covered by potential injuries, we're in a better place this year than we were last year in the 1/2 spots, unless you want to give Moore more importance than deserved.
With Bradley currently injured, we're pretty much in the same situation we were during the playoffs, and Dooling as it is would find it difficult to get on the floor this year under this circumstances, and that should tell you something. And if he would get playing time, it would be at the expense of Terry, Lee, or Rondo, and I don't like that trade-off. During the playoffs we needed Dooling, so that should tell you how our make-up differs to that of last year.
That said, Dooling was horrible as a PG. He was good for us off the ball, and I think that's more easy to replace than the concerns towards PG play everyone is fussing about.
So towards the argument, Dooling has been replaced and improved upon. The hypothetical role Dooling was going to fill for this season yet remains to be seen. Terry already has the preaching covered, and I'm actually more comfortable with Christmas with PG duties, limited as they are, than that of Dooling. So I'm not concerned about not having Dooling, we can do better for cheap.