Juve had Pogba/Vidal/Pirlo/Moratta and Tevez in the season they got to the final.
I don't think their team is stronger then that at the moment, no where near as strong as their fans try to make out.
Higuain is much better than Morata, Dybala is already producing Tevez' numbers and only getting better. Pirlo was going downhill fast and about to loose his place, that's why he left. Marchisio is not as a creative but also much better defensively, allowing more freedom to go forward to our other midfielders. Khedira and Pjanic are not as good as Vidal and Pogba, but they are still pretty good. We also have more and better depth in defense with Benatia and Rugani. We have Mandzukic who is much better than Llorente. And we have a lot more technical quality on the wing with Dani Alves. Our current squad is at least as good as the one that made the final. We lost a bit in midfield, but improved in attack and in overall depth. That's why we are confident that we can go far in the CL again.