Zambrano was a great sleeper this year as well as last year. I think a lot of noobs didn't even know about him because Wood and Prior get all the hype and a lot of the veterans were scared away because of the K/BB ratio.
But if you watch him pitch, his stuff is absolutely filthy^10! Don't even think of selling high on Zambrano!
"And so he spoke, and so he spoke, that lord of Castamere. But now the rains weep o'er his hall, with no one there to hear." - The Rains of Castamere