Heat vs. Celtics: Why Eastern Conference finals should be more about dominant Miami than collapsing Boston

MIAMI — There’s an old sportswriting adage that if you try to say too much, you end up not saying anything at all. Narrow your focus to one or two specific points. A central theme. Go from there. But in the case of the Miami Heat’s 128-102 blowout win over the Boston Celtics in Game 3 of the Eastern Conference finals on Sunday, there’s no way to narrow down what happened. The Heat destroyed Boston in every single aspect of the game. Shooting. Defense. Aggression. Execution. Hustle. You name the basketball facet, and Miami dominated it. The Heat are now…