Pierce?
He gonna be 35, skills might diminish, maybe less minutes, more injury prone
or maybe it will be Avery Bradley, who might not be able to shoot from more than 2 feet?
Kind of a negative thing to think about. I'd like to think of nobody on this team as a scapegoat, because they'll be too busy winning the title.

But I'll play along, eventually it'll be Doc Rivers again, IMO. Just like he got all the blame back in 2005-2007.