The Yankees will have problems with their bullpen with Farnworthless as the setup guy and nothing but question marks to even set him up. Remember that it was Chamberlain that held the bullpen together with Rivera.
The Yankee starters next year will include Pettitte, Wang, Hughes, Chamberlain, Mussina, Kennedy and Igawa so starting pitching really isn't an issue. I think the only glaring problem we have is a setup guy as those in that list above not starting will be pitching long relief. They will probably get Vizcaino back and they still have Ohlendorf, Bruney, Karstens, Veras, Ramirez, Henn and maybe even Sanchez they can throw into the pen. So they are really loaded and that doesn't even include the younger guys like Horne who may make it to the bigs this year. It's just that 8th inning guy they need to go along with Farnsworth.
