I think Juventus is having a hard time in their attacking line. Because there is no trace of Juventus, who had no trouble scoring goals in the Italian league. I think they are having a bit more difficulty scoring goals this year. However, the defense is very good and they are doing their job very well. That's why a few reinforcements from the attacking line are a must in the mid-season transfer period.
Juventus have problems in attacking system this season at least in early of the season. They need to improve it, score more goals that are necessary for them to win matches. Good defense can only help them to avoid defeats but they can not rely on good defense and mistakes of opponents in own goals for winning matches. They must score more goals to win matches by their own attempts because depending on opponents' own goals in every match is unrealistic, and it's not what a league champion need to have.
I've noticed this too, in defense we're doing more than well, but in attack thei're in really bad shape
If you play matches and dont score goals, in the best case scenario you draw
then if bad luck happens you could even lose the games
playing defensively, in my way of seeing football, does not lead to winning, my hopinion