Joe Torre
The numbers 37 and 6, retired for Casey Stengel and Joe Torre respectively, are the only numbers retired by the Yankees for someone who served solely as manager of the team. Stengel managed the Yankees to ten pennants and seven world championships between 1949 and 1960, including a record five consecutive world championships from 1949 through 1953. Joe Torre managed the Yankees from 1996 to 2007, winning six pennants and four World Series championships.