By Michael Pina After the Finals opener saw Boston’s efficient attack run smoothly, Golden State’s defensive priorities need a close look heading into Game 2. Boston’s defense vs. Golden State’s offense was the highly anticipated heavyweight fight basketball fans couldn’t wait to see heading into these NBA Finals. But in Game 1, the Celtics’ scoring onslaught stole the show. Boston generated 129 points per 100 possessions, a mark topped only once in their playoff run (Game 2 against the Heat), and in just 11 games throughout the entire regular season. They shared the ball (an exceptional 76.7%…