Go after Khris Middleton, Tobias Harris and Greg Monroe. You get one of them they're young enough that you can still classify it as a "tank" if you want, but they're another young piece that will get you somewhere. Plus, the draft next year sucks, so there's no point in tanking anyway.
and why would we trade Dame???? So we can "tank" for years hoping for someone just like him? That's dumb.
Try to grab one of the rfa youngsters and absorb as many one year deals as you can with pick compensation. Draft a stud and go for a quick rebuild next year with the cap space and hopefully a bright outlook.