The Brad Stevens slander I've been seeing on this site recently has been a bit over the top. I'm not sure if it's recency bias, lack of specific basketball X's and O's knowledge, or just plain anger at the close losses, but there are a few critiques of Stevens that are absolutely ridiculous in various ways. I normally would attribute this to anger and short-term irrationality, but people have started to assert that these critiques are valid yearly patterns, which is patently false. So here is my brief defense of Brad Stevens as a top NBA coach.
"Lack of Adjustments"Stevens is making
tons of adjustments in the middle of games. Just because people can't understand them or players aren't properly executing does not mean he does not notice changes in defenses or what needs to be done to them. Toronto threw the kitchen sink at Boston (4-5 different defenses per game is absolutely ridiculous), and Boston had counters for all of their schemes. Sure, the players didn't recognize changing defenses sometimes, but that doesn't mean Brad was lost or overwhelmed.
Here is a video explaining a lot of the subtle actions the Celtics changed mid-game in the Toronto series:

Link if Embed doesn't work:
https://youtu.be/JrwKa1IkUcsIt took a long time to neutralize Bam's pick and rolls, but those are honestly very basic actions that NBA players should be able to contain. The Celtics (very poorly) tried to force Dragic towards the baseline to flatten his passing angles, hoping they geometry would make pocket passes more difficult and neutralize the effect of leaving Bam open for a few more beats. This was necessary because Robinson was lighting us up. If I recall correctly, Stevens adjusted by putting Kemba on Robinson so the longer help defenders (Tatum and Jaylen) were able to sag off their assignments and help bump the roll man, and Bam hardly scored at all in the fourth quarter. Unfortunately, this led to the dagger where Robinson floated to the top of the key and Kemba was too short to contest after losing track of Robinson for a half second, but it shows why the wing length usually reserved for protecting the paint was on Robinson in the first place. (Keep in mind, this was only after the smaller Smart failed to contain Robinson early on. That means Stevens, the "one who can't make adjustments" changed his defensive matchups 3 times to contain the hot hand. Each time, the desired player was neutralized [Robinson in the middle of the game, Bam in the 4th], but you also gave something up, showing that the adjustments aren't as simple as "good or bad.")
"We've been a bad Q3 team the entire year/Brad is a bad third quarter coach" This is about as false as can be. In fact, this entire season (
including the playoffs), the Celtics were the 2nd-best third quarter team by point differential, at +2.3 points per game. Before the bubble, they were actually the best third quarter team by a healthy margin, at +3.2 points per game, with the second-best team being Toronto at +2.6. We ended the "regular season" (including the 8 bubble games) at +3.1 ppl in the third quarter, first in the league by .8ppg (Milwaukee was second at +2.3).
Source (cumulative):
https://www.teamrankings.com/nba/stat/average-3rd-quarter-margin?date=2020-09-18Source (pre-bubble stats):
https://www.teamrankings.com/nba/stat/average-3rd-quarter-margin?date=2020-08-01 Yes, we are 12th out of the 16 playoff teams in 3Q net rating in the playoffs, but that is a minuscule sample size of 13 games, which leads to a lot of statistical variance. No one was harping on this when we beat the Heat by 12 points in the third quarter of game 1. (This is not a good-faith argument, but it is about as statistically significant as referencing two and a half playoff series, one of which was a sweep.)
The Celtics were 16th last season (including postseason) in 3Q point differential, at +.2 and 4th in the NBA in 2017-18, at +1.5 (including postseason).
To conclude, I would like to argue that the poor performance of the Celtics has more to do with lack of depth and players underperforming than it does Brad. At the end of the day, we're down a starter and have a flawed roster (few bench players, bigs with various weaknesses). I'm seeing a profound lack of efforts & consistency on defense (struggling to contain pick and rolls, not chasing Dragic hard enough around screens, losing track of the Heat repositioning around the arc, small footwork problems hard hedging or icing ball handlers, etc) and some poor decision making (passing up open shots, missing open cutters) that I really don't think reflect poorly on Brad at all. I don't mean to come across as confrontational, but the slander this Top 3 (imo) coach is getting is a bit silly.