I think Murphy would be so brilliant and perfect for the Witch; it reminds me of when people were expecting some type of star-casting for Phyllis in the recent Kennedy Center production, we got Jan Maxwell instead (I was one of those who complained about not getting someone more a-list, like the rumored Kim Cattrall) and she ended up blowing everyone's minds away. It'd be interesting if Murphy did the show since she has made a point to stay away from Broadway revivals, if you look at her career in recent years, she has only done revivals in short runs (FOLLIES, ANYONE CAN WHISTLE) and declined to do both FOLLIES and ANYTHING GOES on Broadway. I hope if she is indeed being pursued to do this that there's some sort of agreement about her coming to Broadway with it.
As much as I think it'd be wonderful to have a production with someone like Catherine Zeta-Jones (who I think must play the role at some point in her life, she'd be so good!) or Toni Collette, casting Murphy would open up the potential to create a really strong ensemble production (and yes, get Ambrose on the phone to play the Baker's Wife ASAP), instead of one that revolves around a star.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"