I'm aware of the talents of the Brazilian players but still the Brazil we see right now is not in a good performance like were years ago and there are not any superstar players like Kaka, Ronaldo, etc... in this team anymore. Even players like Neymar can't have the same performance we saw from then in the last years,
Neymar is also one of the players included in a row of legends such as Pele, Cafu, Rivaldo, Ronaldinho, Ronaldo and Kaka. But the problem is that until now Neymar has not been able to offer a title to his country at the World Cup. Neymar's appearance in the two previous World Cups can also be said to be pretty good, even though he had injured during the Qatar World Cup. To compare Neymar with other legends might not be the same because each player must have differences and and every generation must be different.
It is precisely what I see football today is different from traditional football, where each individual can provide changes on the field. But now it's more to collectivity and individual abilities don't stand out so much if you don't play solidly between one player and another.
I would say that Brazil never had any problems with talents and even strong players who belong to the top elite soccer players in the world. In the recent past or during the last few tournaments they had more trouble to build a cohesive team. One that fits together perfectly and that can play as we have been knowing Brazil for a long time. They have a lot of exceptional individual players, but they couldn't build the ties between all these exceptional players and develop a team that feels united and fights as a unit for their success. As soon as they can solve that problem, the times will come back when Brazil is the team that must be beaten in order to win the World Cup.
This is where Brazil's weaknesses today and although they have quite quality star players, but still very difficult for this team to win the World Cup. Even though every year there are always Brazilian players who are able to penetrate Europe even though they are sometimes not up to 20 years and almost on average their players play in large clubs. Difficulties in building a team collectively may be the part that affects them unable to perform optimally at every World Cup performance but other facts may also not be deals.
Even when Brazil hosted the 2014 World Cup before, Germany managed to slaughter Brazil with a landslide score of 7-1 and at that time the Brazilian players were also extraordinary, even the squad they had was far better than the squad that appeared in Qatar.