Yes, Serie A has changed, and the competition in Serie A is more fierce than it was in the past 10 years. Since Juventus couldn't improve their squad depth, they couldn't win the Scudetto the way they used to do. I would have been skeptical about Juventus's performance next season, but with the way they performed in the just-concluded Club World Cup tournament, I believe there's a chance for them to improve their performance next season.
Since Juventus had problems violating FFP rules their performance has declined and they are no longer free to recruit players so they are increasingly limiting their spending so it is not surprising that Juventus is having difficulty competing in the title race in Serie A, for next season I also do not expect too much but they are also trying to bring in 2 wingers from Porto and Fiorentina to improve their attack line because in my opinion Juventus problem in the last few seasons is their attack is not so strong, hopefully these two players can have a positive impact on the club.