Brad must read SOSH because in response to our complaints about ball movement, he's installed actions designed to minimize ISO, get players attempts at the rim, and just generally pass more.
https://www.bostonglobe.com/2021/04/05/sports/how-celtics-increased-ball-movement-is-helping-their-offense/
The answer Stevens came up with seems simple, but it’s been a process, one that will continue as the Celtics try to pull themselves up from eighth place in the Eastern Conference before the playoffs start next month. Stevens has tried to get his team to buy into more ball movement and more cutting actions to open up more possibilities on offense, and while it’s been a process, it’s starting to click.
The ball is moving more and the numbers show it. The Celtics are 16th in the league in passes per game (286.6). In their two most recent games, the Celtics made 318 passes against Houston and 292 against Charlotte. Over the last 15 games, the Celtics are averaging 297.3 passes per game, eighth in the league.