Should Posada move on to another team next year, one of the great Yankee careers will have come to an end. Inevitably, the baseball media and blogosphere in New York, will begin questioning Posada’s credentials as a “true Yankee.” Putting aside the legitimacy of questioning the credentials of a player who played a key role in four Yankee World Series winning teams, delivering numerous big seasons and clutch hits along the way, this also draws attention to the absurdity of this term.