From Playbill.com:
"Jenna Elfman, the star of TV's now-ended "Dharma and Greg" sitcom, has withdrawn from the forthcoming revival of Sweet Charity. The New York Post reports that Elfman, who would have been making her Broadway debut, is no longer attached to the musical, which is being produced by Barry and Fran Weissler."
"As reported by Playbill On-Line in October, Marisa Tomei will play the title dreamer in a new revival of the musical Sweet Charity intended for Broadway. Now the New York Times reports that the production will open Aug. 17. No specific theatre has been named."
Sorry newsieboy, you're wrong. Both of these articles give proof that both Elfman and Tomei were confirmed for the role at some point.
"I love talking about nothing. It is the only thing I know anything about." - Oscar Wilde