Of course, Inter is amongst the favorite club to win the scuddeto but they need to fight hard for it because Napoli is a rival. Chivu might not have much experience in coaching the senior team, I believe that with the little experience he has in the coaching field, he will surprise everyone this season.
Inter has the squad it takes to win any competition they participate in and that will give them more confidence to exploit their opponents. As the season goes farther, we will see if Inter is capable of winning the title this season or not. Chivu needs to put in his best in order to shut up the mouth of the people criticizing him.
With very good player resource, Inter Milan are certainly one of most promising candidates for Scudetto but they must perform well with a new and young head coach. First ten matches in Serie A with Chivu, if he manages to stay a long time like that, will give us better view on Inter Milan strength and competitiveness in this season. In theory they are competitive but no title belongs to them by theory while they must train and play well to get points. Napoli already shown that they are continuing to be competitive in this season and ready to cover Lukaku absence by Hojlund from Manchester United. Some other clubs like Juventus and AS Roma already got good starts and can be a candidate for Scudetto too.
You are absolutely right that it is too early to judge team consistency and changes at both Juventus and Inter Milan make things very interesting this season. You also correctly noted that Inter has new coach Cristian Chivu who took over from Simone Inzaghi. Upcoming match between these two teams which will take place at Allianz Stadium in Turin will be crucial test for both sides. It will be great way to see how they have adapted and who has early advantage in title race just as you said.
It takes several years for Simone Inzaghi to build up his coach career in Lazio, gained success there before moving to Inter Milan and got bigger success. Chivu is only in his first season as a head coach and it's very challenging for him, only with a target in top four. Scudetto is what Inter Milan want but with Chivu, it's too ambitious task on him and he will likely fail to satisfy Inter Milan.