Yesterday's match is not and should not be considered as a measure of quality of the team. Juventus has just started their pre-season training and one part of their team hasn't even returned from their holidays yet. They have a lot of work in front of them. Nurnberg is the exact opposite. They have finished their preparations, and their season in the 2. Bundesliga begins next weekend. It's only normal that they will have much better match fitness. Juve played the match with many youngsters, some of which won't stay at the club and others who will feature for the youth teams.
Although pre season friendlies are actually a way to tell how the season will look but that’s not the best thing to use to measure the club going to the season. Some of the clubs are currently without their senior players due to the Euro and Copa America vacations, but the main thing is managers like Thiago Motta are implementing new tactics which will definitely not click in the first moment. Also most of all this smaller clubs take pre season more important because some players are seeking for top flight recognition not more. It will be absurd to rate clubs pre season performance in correlation to what will happen during the season, Pep hardly wins pre season matches
I actually don't want to comment on what happened to the clubs that played pre-season matches, including Juventus. Because what we saw in this match can't be used as a conclusion that their game will be like that when the season starts. In fact, one of the reasons why I don't want to bet on pre-season matches is because they are not serious about winning.
I think we have heard many coaches say that they are not focused on winning in matches like this, they say more that they only focus on their form of play, while seeing which strategy will be their mainstay. Usually they play all the players they have, and in strategy they try many strategies that are aimed at refining the strategy that they will use in the league. If their orientation is only on winning, then I don't think it can be called a trial match.