Debra Messing can read ratings with the best of them and has signed on to be the lead of a CBS pilot called Shira which is about a woman trying to balance her home and work life. Yeah, so like every other sitcom you have ever heard. Although if NBC picks up Smash, Debra would have to return to the show, the fact that CBS made her a deal shows the world that Smash is a goner and that Debra must be feeling real proud of herself for lining up something. It won't make it of course, but right now she can pat all her co-stars on the back and tell them they will get something real soon or that NBC might still renew Smash while laughing quietly to herself.
Source:
http://www.crazydaysandnights.net/2013/03/debra-messing-jumps-ship-heads-to-cbs.html