I see a lot of good things about Smith's game, but I strongly disagree with the idea of acquiring him at the expense of a package including something like Bradley, Sully, and a first.
Bradley is perhaps the best on-ball defender in the world. And his offensive game is steadily improving. You don't give up a guy like that. Especially not when he could form a formidable duo with Rondo for the next decade.
Sully, though only a rookie, has the potential, in my opinion, to be a career double-double guy, a real impact player.
To me, Josh Smith doesn't equal the value of these two plus a first-rounder. Yes, he too would form a formidable duo with Rondo, and he too is an impact player, but he's only one guy, and a pretty expensive guy, at that. He also doesn't seem too disciplined offensively, and I'm concerned that he's reached his peak already.
I'd rather keep our young guys on cheap to reasonable deals and watch them develop into the solid to great players I think they'll become.