Game-ending hits are becoming so routine these days in Oakland that concession workers have the celebratory whipped-cream pies waiting near the dugout whenever the Athletics are in position for another walk-off win. Brandon Moss delivered the 10th of the season for the A's when he drove in Yoenis Cespedes with an RBI single with one out in the ninth inning Friday night to give Oakland a 3-2 victory over the New York Yankees for their seventh win in eight games.