Atlanta's Defensive Rating Isn't as Good as Last Season

Atlanta has a roster full of players who can do something off the dribble. Andike, sometimes their offensjus feels really disjointed. Their defence is not on the same level it was before. It's been below average so far this season. I believe it's bottom ten in defensiv rating after that utah game. Is this with the current rosterchris? Or is there a need for some consolidation and turning like three into onet? That, to meis like the big solution. But i'm just not sure that's there for them this season, just because the trade market is so flat.