When Abu Muqawama asked him about some of the lessons he learned over the course of a long and distinguished military career, Gen. John Abizaid said the following: "Yeah. I've learned you never want to be the #3 guy in Al-Qaeda. We've killed that guy I don't know how many times."
Update: Or as the Onion put it, "Eighty Percent of al Qaeda No. 2's Now Dead."