That is according to basketball legend Stephen Jackson.
The Celtics began their 2018/19 campaign on Tuesday night with a 105-87 win over the Philadelphia 76ers.
The win saw the return of Kyrie Irving and Gordon Hayward, after both had their seasons cut short last year through injury.
The Celtics are one of the bookies favourites to go all the way and challenge for the NBA title.
Their job has been made undoubtedly easier by the fact that LeBron James departed the Eastern conference for the West, moving from the Cleveland Cavaliers to the Los Angeles Lakers.
Jackson, however, believes that the reason the Celtics will do well is because of their depth.
“They’re the only team in the NBA that has ten guys on the roster who could start for any other team,” Jackson said.
“They are that deep.
“What separates them and what makes us not have to worry about guys worrying about shots or guys worrying about getting their numbers is that coach does a great job of making everyone feel confident.
“And he makes sure everyone feels like a number one player.
“Even last night you see Kyrie didn’t get going, he didn’t get frustrated.
“He started giving the ball to Tatum and the other guys.
“Because he understands that he’s not going to be the only player on that team.”
Jackson praised head coach Brad Stevens for creating a positive locker room, and said with him they can go all the way.
“You have to give credit to coach Stevens for giving all the players confidence,” Jackson said.
“Even the guys coming off the bench are coming on with confidence, and that’s why they were successful last year.”