John Karalis rundown of the 4th quarter lays the blame with the Celtics poor drives.
First he goes through the 11 three-pointers taken (2 makes) and concludes that only one of them was bad (an opportunity from the corner where Jrue had the opportunity to drive and create), another iffy (White off the dribble with a lot of clock).
A video of all 12:
View: https://youtu.be/EDNl6Kb3t0I
I would quibble a bit - he calls the 2 Brown attempts good, but I think both of those were well defended. On one of them he points to Brown having a low shot clock - which is fine if you are evaluating Brown's decision making, but not so much if you are evaluating the Celtics offense as a whole.
To the extent threes like this one are the shots you end up taking "bad 3-point luck" is not an adequate expalanation for the Celtics problems. But as Karalis notes, that largely was not the case in the 4th.
But Karalis also notes that in terms of non-threes, the Celtics offense was hot garbage in the 4th.
And his specific analysis of the 4th quarter drives...
View: https://youtu.be/LT4sY1KLNMQ
View: https://youtu.be/njJ6O7mjSug
View: https://youtu.be/njJ6O7mjSug
Tatum is just determined to get to rim on this one. Okay, fine, but if you're gonna do that, then do it with power. If you're not dunking this, then you'd better be passing this.
The drive option demands Tatum play with more force. On this drive, he's simply trying to out-sprint everyone to rim and glide for the layup. He gets too out of control. I thought he was fouled on this play watching it live, but he wasn't. He just fell. What he should have done was slow down, put a shoulder in Hartenstein's chest, bury him under the basket, play off two feet, and dunk on him.
The problem is that White's defender is helping. I think he would have been stripped if he tried to dunk on Hartenstein. Instead, Tatum has to see three black shirts and understand what's happening. White is wide open. Taking the extra dribble guarantees White would be all alone in the corner with no one within 15 feet of him.
This is a bad read. Mazzulla's offense demands this pass be made. And while you might say the Celtics were cold, what better way to get someone going then a massively wide-open corner 3-pointer? A pass and make in this situation could have gotten White going for a late scoring spurt.