I think it is still too early to say that Juventus will have a hard time winning trophies this season, let alone qualifying for the Champions League next season because the chances are still wide open. Although so far Juventus is in fifth place and 13 points behind Napoli in first place, there are still many matches and anything can happen in the future. Therefore, what Juventus needs to do is to continue to collect as many points as possible while hoping that other teams lose a lot of points so that Juventus has a chance to win the title this season and qualify for the Champions League next season.
I think I agree that Juventus will have a hard time winning trophies. Before the start of the season, I saw them as a team that will challenge for the league but they've failed to do that and I don't see any trophy they can win so far.
The Coppa Italia is the only trophy where they stand a chance and there are still teams like Atalanta, Milan and Inter in the tournament which will make things difficult for Juventus.
The major problem Juventus have is that they cant score goals. You can win trophies if you cant score goals. A 3-2 win is better than a 0-0 draw. Theres no point in having a good defence yet not being able to score goals and wi games. They haven't lost a league game this season yet they're 5th on the table. That shows how many draws they get.
It's not too early to conclude, were in the second half of the season which is a pretty long way.