I agree Juventus has not been playing well lately because they do not have much motivation and are focusing on another big game against Atalanta. They already know they will be playing in Champions League next season so they might be feeling bit too comfortable. This has made them play less intensely and with less energy. Coach has also change players around to prepare for other game which has affected how well team works together. This is clear from their close win against Salernitana team that will be relegated. This shows that Juventus is struggling right now.
Seeing Juventus only draw against Salernitana because they are focused on bigger matches seems quite acceptable, but actually it also proves that Juventus is not a team with high motivation to perform well whatever the conditions they face.
The Copa Italia match is Juventus' target to be able to end this season with at least one title. If it fails, it will be a big disappointment for fans because they see their favorite club not winning a single title in the last few seasons. Juventus has a big chance to become the Copa Italia champion, but Atalanta their performance looks better than Juventus in the last few matches in Serie A, and my prediction is that this final will only have a few goals scored.