There are a lot of things that need to go right to win the title.
Avoiding injuries, shot luck variance, and a favorable playoff bracket are all major factors into winning a championship.
You also need your best players to play well and the Celtics had that a year ago. Specifically, Derrick White and Jrue Holiday were huge throughout.
We all remember the huge defensive plays they made to seal games during Boston’s title run a season ago.
In the biggest moments, when the Celtics needed someone to step up, it was Holiday and White who constantly got the job done.