In all the discussion about whether Harvey is Tevye (and there has been a lot) there is no one that is saying Harvey is not a good actor...just that all roles are not for all actors.
I CANNOT see Harvey in this role at all, and the few reports coming out seem to indicate that the show now really revolves around him and his presence...and his Harvey-ism mannerisms...which is NOT what Fiddler is supposed to be.
All that aside, I'm sure he'll sell tickets, but I would much rather have seen someone more suited to this role take over from Molina.
"Life is a lesson in humility"