According to Peter Abraham;
Cashman said that Wang, Andy Pettitte and Mike Mussina are in the rotation.
The other two spots are open. At some point, Chamberlain will have his innings restricted. That could come in a variety of ways including being used in the bullpen. “We have to see how it all plays out,” Cashman said. “But Joba will prepare as a starter.”
I really thought we had seen the end of Mike Mussina's days in the Yankee Rotation. Take a look at Moose's ERA the last four years;
Take out the walk year abberation and Moose has been a bad pitcher for some time now. It is time for Moose to join the ranks of the National League or slip into his spot as a long reliever. Hearing Cashman say that he is in makes me cringe. I only hope that this is the plan to start the season as a way to avoid Joba's innings limit(~160) and once the calendar turns to June, Joba takes over every fifth day.