I think it has more to do with ball movement, even though the defense has gotten better.
I think it's the defense, they don't have a weak defender on the perimeter without Thomas out there, his defense is horrible because they target him or they go at the bigs because he's hiding on someone. This is the 3rd straight quarter that they've held the Cavs under 25pts, they were giving up 30pt quarters with Thomas like that shyt was part of the plan.

good offenses get easy buckets....but everything else outside the cherry picking is coming difficult 