Sweet 17. The Boston Celtics lead by its “Big Three” revitalized a franchise that until this year, was struggling. I guess if you really look at it, struggling might be too good a word. One year ago, the Boston Celtics were the worst team in the NBA, but now they can call themselves champions. What did it take? It was 3 simple steps that lead the new Celtics to the franchise’s 17th championship.