Their first match is against COMO, a promoted club who is said to have made a lot of good signings in the transfer window this season. We can see how Motta's tactics will play in the first match. I expect a good performance from Juventus because I don't think anyone would have predicted COMO to win that match.
Como is actually an interesting team recently. Their main transfer policy has been like to sign some old but decent players. Pepe Reina is an example for that but he is 41 years old now.

Audero is a good signing for the GK role by the way. He would probably be the main GK. They have signed players like Varane and Belotti as well. Really great moves. Varane is the most valuable player in the squad by far.
On paper, of course one expects Juventus to win anyway. But so far I didn't see them ready for the new season. At least the friendly results tell us that. I would like to be proven wrong by Motta of course. Let's see.

Como is currently a promotional team that has worked quite hard to strengthen their squad and so far they are the most aggressive team in bringing in 13 new players by spending a total of 40 million euros, although most of the players recruited by Como are free transfer and their are already old but we can't deny that they are still playing quite well so far and of course with the experience they have it will probably make Como quite strong next season, but apart from that of course we will see how Fabregas can maximize their squad in next season.
In 5 days the first match will be played by Juventus and Como, but if you look at the many changes and improvements made by the two teams at this time, it is certainly difficult for us to predict the results of the match, so far Juventus will be the favorite team in this match but not impossible if Como will surprise them in their first match later, especially now that we can't find the latest statistics and head to head meetings between the two teams at this time.
