The risk of a team that tightens up their defense too much is that they find it difficult to score goals, I think that is realistic when Juventus play quite cautiously and they are very focused on their defense so they don't dare to go out or take risks to do many attacks to be able to score goals.
The draw against AC Milan was not so surprising, Juventus have played like that several times against strong Serie A teams and I think a team like Juventus is quite boring to watch.
When Juventus are up against high quality teams such as AC Milan, a strong defensive strategy is commonplace. If defence is received too much, creativity goes down and the chance of scoring goals also less. This kind of tactic is however, important to mention that this tactic is usually used to keep the game stable and to avoid any mistake in the game that can be capitalised by the opponent. But there is still a role for Juventus to be more plays from the front and attack more freely without losing all its balance of game.
Juventus can now try to apply a quick transition from the defence to attack that must keep their game interesting and good. But players with good speed and vision can also help you to otherwise break through the an opponent's defense. They can be a bigger threat with a more varied combination of games, without constantly leaving the defence zone to do it. This sort of strategy isn’t just better for getting more maximum results, it’s also a secondary kind of treat for those spectators who fall in love with the globe, but can’t often watch passionate matches.