Currently, no player wears #27 for the Yankees.
Yankees manager, Joe Girardi switched to #28 in 2010. He wears that number as a good luck charm, with the hopes of the Yankees going on and winning their 28th championship. In 2009, Joe wore #27 and the Yankees won their 27th World Series.
Yogi Berra (Catcher) and Bill Dickey (catcher)
The backup catcher Francisco Cervelli.
Yankees manager Bucky Harris wore #47 in 1947 and 1948. Casey Stengel wore #47 as manager from 1949-1960.
Dan Girardi is number 5 on the New York Rangers.
Mike StanleyCatcher Mike Stanley wore uniform number 20 for the 1992 New York Yankees.
Brett Gardner currently wears number 11 for the New York Yankees.
Casey Stengel wore uniform number 37 as a manager for the New York Yankees, His number was retired in 1970.
Bucky Dent wore number 20 as a Yankees player from 1977 to 1982. As a Yankees manager he wore numbers 17, 20and 30 in 1989 and 1990.
McCarthy never wore a uniform with a number.
Casey Stengel's number as a player was 1, and as a manager, he wore number 37 for the New York Yankees and number 30 for the New York Mets.