MISSION 27: A New Boss, a New Ballpark, and One Last Ring for the Yankees' Core Four

Boasting a mix of homegrown talent and All-Star signings, the 2009 Yankees were composed of the very best including the "Core Four": Derek Jeter, Mariano Rivera, Jorge Posada, and Andy Pettitte. Explore a thoroughly reported chronicle of an unforgettable season packed with interviews of key players, coaches, broadcasters and more. Color photos.