As soon as the Yankees’ World Series hopes ended at the hands of the rival Red Sox during the ALDS last October, general manager Brian Cashman put his offseason plan into motion. Attention to the starting pitching was an announced priority, so he immediately re-signed team leader CC Sabathia to a one-year contract. He also re-upped J.A. Happ, who had performed so brilliantly down the stretch in helping the team clinch its postseason berth last season. The GM succeeded in upgrading one rotation spot by trading for another promising left-hander, James Paxton, who emerged as a potential high-end arm when he tossed a no-hitter last summer.