That is an abysmal collection of "talent." You'd have to move Rondo or else he would show you up by dominating all the players brought in to replace him.
You don't need Rondo when you have Kris Dunn who's Rondo lite, but seriously worse on offense. I don't think he's going to be horrible on offense for his whole career, but it may take him more than another season to get to rotation worthy. May as well get him the PT to develop while the team is expected to be awful anyway.
I could have seen us wanting him before we traded Butler, but not now. He is a much better fit in LA since Paul is gone.