Juventus performance last season wasn't really impressive compared to the previous seasons due to the lack of a sharp striker who can score as many goals as possible whenever he sees the opportunity to find the back of the net. They need to sign a good striker who can save them for wasting most of their balls when the chance comes.
Last season Juventus did started off as a top contender and they were in the top three at a time and afterwards a while they were found struggling to make it to top 5 which they later finished around top 5, I expected they would have own the league title or finish at the second position, they are good at some point and at some point they struggle so they need to do better this season. Their striker is not doing really bad but they needed him to improve with his skill and their defense has to be strengthened so they conceive lesser goal.
Juventus unfortunately could not show the performance expected of them at the end of the season. Actually, we should not be angry with them about this, they have had very difficult seasons in recent years and now they are starting to play at the top again. The squad quality is not bad, but the team may be inadequate in terms of rotation. That is why they have to make more transfers. If there was a very good striker in the team, I think it would not be like it is now and they could finish the league among the top 2 teams. Of course, Napoli and Inter's performance was also very good this year