The Yankees had Derek Jeter and Mariano Rivera and Andy Pettitte and Jorge Posada and Bernie Williams, and for a time it was as storied a five as the Knicks once had in the old days. One by one they all left, and now it is only Jeter left. And when he is gone at the end of this season, the Yankees will go on, the brand of the Yankees will go on, the big business of the Yankees sure will. But more than Jeter's extraordinary career ends when he goes. The extraordinary culture that he and his own storied teammates helped create — or recreate with the Yankees — goes with him.