This summer has been one of change for the Boston Celtics. Brad Stevens has made multiple moves since the offseason began, as he begins retooling what had become an aging roster.Boston isn’t going to be a contender next season.

BOSTON — While acknowledging the benefit of potentially escaping the luxury tax next season, Celtics president of basketball operations Brad Stevens suggested Tuesday that no further trades are imminent and the Celtics could be done with significant changes this offseason.

The Boston Celtics are trying to make a major trade as president Brad Stevens talks about the state of the roster and gives a Jaylen Brown update.

The Cavs -- the Eastern Conference favorites in July (+245 on DraftKings) -- have essentially turned Ty Jerome and Isaac Okoro into Lonzo Ball and Larry Nance Jr. The new players certainly come with more medical risks (though Jerome is no slouch in that department), but they bring decidedly different looks to Cleveland.

So far for the Boston Celtics, the offseason has been mostly about subtraction. Subtracting star players like Jrue Holiday and Kristaps Porzingis, and subtracting their massive contracts from the books.

Let's look at the key offseason additions and departures for the top 10 teams in the NBA's Eastern Conference.