The weak screens, almost none existent off-ball movement, and bad defense on screens is gotta be tied to coaching.
Our guards smack into the screen every single time. No one goes under on non-shooters or feels like fighting over them. The defensive positioning is just bad. Some of those rotations on defense were just really bad in general, except for D-Wade, he killed it with his help defense and individual defense on Durant.
Like there's no way JBB is telling Okoro and Garland(when Rubio is directing the offense) to park their asses at the corner on almost every play, then trying to post up Lauri against other bigs and James Harden when that man has no interest in playing physical.
He's coaching like a combination of Thibs and Mike Brown. Props that he has these guys playing hard, but they have a lot to clean up.