After seeing both Joanna and Brittny I think Joanna could have made the Broadway show a hit.
I did not believe that "role sharing" was offered. I always thought it was something they put on 20-20 to take the sting out of the fact they let Joanna go and to make themselves look better - to make it look like it was Joanna's decision to leave in the end.
At the end of the 2nd 20-20 show they made the comments "tickets are selling" and the "show has been nominated for a Tony". Tickets were barely selling and already at the discount booth. The Tony was for "Best Revival" and there were only three (I think) on Broadway at the time.
I would love it if Joanna won AI. She's a major talent and deserves it.