Not sure if it's been discussed, but for last several games (probably longer), the opposing wings have been killing us. Here are some of the stats
Raptors (12/14):
S. Barnes: 10/16 for 27 pts
VanVleet: 13/25 for 39 pts
Pistons(12/16): No significant scorer
Hornets(12/19):
G Hayward: 8/12 for 19 pts
K Oubre Jr: 12/25 for 31 pts
Lakers(12/21):
Bron: 11/21 for 31 pts
Wizards(12/23):
Kuzma: 14/23 for 32 pts
Beal: 10/16 for 24 pts
Nuggets(12/27):
MPJ: 12/20 for 30 pts
One expects players like Bron to get theirs, but if all opposing wings are consistently having high scoring games against us (both in terms of volume and efficiency), it certainly shows our defense is poor. Whether it's on coaches, or individual players, don't know, but certainly something that needs focus.
Also wonder if giving some extended minutes to KZ is an idea that should be revisited. If the opposing wings are on a tear, having a defensive minded player for stretches might make sense. I understand the experiment didn't quite work out at the beginning, but both KZ and the team should have had a better understanding now.