Andy Pettitte believes this is the best five-man rotation he has been a part of during his many years with the Yankees. "Yeah, definitely. Obviously, with CC [Sabathia] and A.J. [Burnett], it's looking like a rotation that's a huge improvement over last year. If we all stay healthy and our bullpen stays healthy, we look strong on paper, but you have to play the games," Pettitte said. "Boston is so strong. Tampa is so strong. Baltimore is getting better. It's a tough division."