Flushing will be fun this year. Photo: Rich Storry/Getty Images Peligro Sports employee Randy Rodriguez was smiling sheepishly. Standing in front of an array of caps at a Washington Heights sporting-goods store one day last month, he admitted he was abandoning the Yankees . Never mind that the team has won 27 championships, made it to the World Series last year, and are betting-odds favorites to return this season (despite a raft of injuries), Rodriguez was terminating his fandom. With the aid