I'd take both Cliff Lee and Carlos Zambrano.
Get on Zambrano all you guys want, but he shows how much he cares. When you have 25 guys who act like that, it kills you, but if you have one or two like that, it could help light a fire under everyones asses. He has been solid for them this year, and without him, the Cubs would be done for the season. Zambrano is one of the few Cubs I like. He is super talented, and he is out there to win at all costs.