Couple of things.
1. Paul George isn't a SG. And he isn't a PF. George wants to play SF. Know why? BECAUSE HE IS A FREAKING SMALL FORWARD!!!! Stop trying to reinvent the wheel to placate other players or show some sense that you are smarter than everyone else. Paul George is a SF and he is a better SF than anyone on our roster so if you trade for him guess where you are going to play him...AT SMALL FORWARD!!!
2. Paul George is a top ten to to twelve player in this league. You aren't getting him with one Nets pick, an expendable player like Bradley, salary filler and garbage picks. Bird isn't giving him away. If you wany him you have to give up this year's Nets pick, Brown, Zizic, one of Bradley, Crowder or Smart and more future firsts. If Brown was a Celtic, its what Ainge would want minimum. You think Bird is any different?
3. There is a lot of reading between the lines going on about George's comment about wanting to play for a winner. Did anyone think that maybe he is talking about wanting to play for a winner in Indiana and that it has nothing to do with wanting to get out of Indy? I see it more as a Paul Pierce circa 2006 call for his front office to go get him some real help and not as a threat that he is going want to actually be traded. Bird screwed up and got role playing vets to put around George. PG wants other stars to play with and this might be how he is telling Bird.
Paul George actually was a full time shooting guard his first two years in the league, and he's fully capable of still playing the position. I'd rather ideally have him at the 3, too, but it could work out like that, especially with as versatile a defender as Crowder is and our ability to put George where we want on the defense.
Further, he's long been rumored to want to play for a bigger market, and many have long suspected that he's a prime candidate to move after this contract is up, or actually earlier with the player option. Nobody is saying that this is him saying, "I'm leaving." This is basically an implicit threat and way to force Bird to make the team better, otherwise he can always opt out next summer and leave for nothing.
But again, I don't see any way that Bird can realistically meet these types of demands, ESPECIALLY if he wants actual stars to play with as you suggest. The only really good trade chip that they have is Turner, but he should be virtually untouchable. I still think George ends up forcing Bird to trade him this summer after failing to seriously upgrade the team. They just don't have the assets, coaching, or market appeal to seriously upgrade at the moment.