Take away the cheap fouls, the fake travel Q, the Dillion flop and we win this game...
I'm going to go out on a limb and say, if we just subtracted 3 points from Houston's total, we'd win the game 
If we subtracted Dillon Brooks and pretended he didn't cook Jaylen for 48 minutes then we'd have not only won but thrashed them 
No, no, no. Joe should have called a timeout and told Jaylen to play better. Unfortunately, he chose not to do that. 
Serious question, though: when a defender is getting burned by a player, does it make sense to just keep doing the same coverages?
One of Joe's faults as a coach is that he's slow to make adjustments. He's shown a pretty good ability to counter strategies game to game, but not within a game. It's something he could get better at.
Dillon Brooks is a career 35% 3-point shooter. He went 10-15 in this game, career best by a large margin. You can look at this both ways. If the defensive scheme was to play Green or others tighter but concede that Brooks would get some shots, that seems like a reasonable scheme. Is it smart to abandon that scheme after a player hits few shots or smarter to stick with it? Of course if you knew in advance that Brooks would go 10-15, then the question is easy to answer.
I don't know the answer, just trying to add some perspective. Green averages 20+ a game, Brooks 13. If we end up in a 7 game series with HOU, do you think Brooks would hit 66% for 7 games? Are you going to change your principle defensive scheme based on who comes out and hits a few shots? I would not based on one game or one quarter. Maybe adjust a little game to game in a 7 game series, like you say.
If it was a scheme thing by HOU, say they had figured out our double teams and were rolling guys wide open and getting dunks, then yes, you may need to adjust in game. But someone just hitting shots they usually don't hit is different. I am not sure it would be the right call, maybe. We could play the same scheme against HOU for 10 games and Brooks would probably not come near 66% in any other game.