In terms of defeats it is true that Juventus are much better and they only lost once against Napoli but the draws that they mostly get have made Juventus fail to compete for the title because currently they are a little bit further behind with points from first to third place. Juventus can reach their best level when they have creative midfielders so that it will be easier for strikers to score goals and this is actually what Motta needs to fix if they want to be one of the candidates for the title for next season.
They did not have too many defeats in this season, as basically they have good defense system in this season. In most of matches, their defense system worked well but their attacking system had big problems in scoring goals. Juventus have to improve their attacking system while maintain their defense system operation, to have better results in future. Especially in Champions League, where they will have risk of facing biggest clubs in Europe in knock out matches. With strong defense, they can have good chance to beat strong opponets if attacking system can operate well even in counter attacks.
Juventus is actually really good this year in my opinion. Because they have one defeat in the Champions League and only one defeat in the Italian league. Considering this, things may seem to be going well, but in the matches they defend so well, they are ineffective in scoring. This is one of the things that is holding them back. I am sure that coach Motta has already identified this deficiency that we, as fans, see. With his findings, Juventus can reach a much better level with a good striker.
Juventus did not play too well in Champions League this season. After 7 matches, they had 3 wins, 3 draws and 1 defeat. If you look at their 3 draws, these matches are with Lille, Aston Villa and Brugge and they are not too strong teams. Juventus have problems from Serie A to Champions League and they have many draws by these issues.
https://www.uefa.com/uefachampionsleague/clubs/50139--juventus/