As a friend of mine wrote today, before the Brown trade:

Yankees rotation before Brown trade: Mussina, Vazquez, Wells, Contreras, Lieber

Yankees rotation after Brown trade and Brown season-ending injury: Mussina, Vazquez, Wells, Contreras, Lieber

Yankees rotation after Wells' arm falls off and Contreras sucks again: Mussina, Vazquez, Lieber, Millwood, Mulholland