Foster is a wonderful dancer. She dances with personality, which is what made Fosse's and Michael Bennett's dancers so unique and inimitable. Her performance of "Show Off" at the Tonys is pure Gwen Verdon magic. She certainly doesn't have the technique that say Bebe Neuwirth has, which I think is where you are getting at, Ljay. But when I think of the great triple threats like Gwen Verdon, Chita Rivera, Bebe Neuwirth, and Rita Moreno, I mostly think about how much personality they were able to bring to the dancing, which is why they are so brilliant at musical theatre acting. Foster is great at that, and she will actually get the humor of the show, which is so important to making the weaker elements of Neil Simon's book work.
Really, Jane Krakowski is the only person I can think of working right now who is the most ideal person for the role. It's a real shame Neil Simon ruined her casting in the last revival, though come to think of it, she kind of dodged a bullet there. Remember when Marisa Tomei was cast? I wonder what that would have been like.
"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"