Blake Griffin is one of the 12-15 most talented players in the league. It's entirely unclear at this point how good he is however. It's probably not a complete coincidence that the Clippers didn't really seem to miss him all that much for instance.Blake Griffin is one of the 12-15 best players in the league. If you can get him, you get him and find another Jae Crowder elsewhere. That's not to say I'd include a BRK pick for him without some assurance he'd commit long term, but neither Crowder nor Bradley would give me any pause.
I'd trade Crowder for him certainly, betting on Stevens to be smarter than Doc about usage, but there's some real risk that Griffin isn't well suited to the "modern NBA". I like his skillset, so again, I'm fine gambling that better usage will make him more effective, but it's a real risk all the same.