I always watch warm ups when I get to the game early enough. And I mean the early warm ups. For one thing, just to entertain myself, I try to pick out the other team's starters by watching how they do in warm ups. (And you can generally figure it out or at least get the guys in the main rotation -- so, again, don't tell me you can't learn much by watching a short highlight video or a brief period of watching a guy play.)
Another thing I look at is how many of the other team's players are draining shots. And there seems to be a very strong correlation between the teams that come in here and beat us and how many of their players can stroke it.
I have to say that, generally over the last decade +/-, we have not looked particularly impressive as a team shooting the ball in warm ups compared to some of the better opponents we've faced. And, yeah, those shots in warm ups don't count. I realise this. But it does give you a window into the offensive firepower that each team possesses. And it gives you a pretty good indication of which opponents are going to be a tough out for us.
If the videos of our recruited commits and the players we appear to be after are any indication, this may be changing. I think there seems to be a pretty strong indication that Coach Miles is prioritizing guys who can shoot in his recruiting efforts. And that includes the bigs. Something to keep an eye on. Be watching our warm ups and keep an eye on how many of our kids can drain it.