Brazil had a bit of a managerial issue and seems like they have recovered that and hired someone now, and I believe that they are going to get better. Also, it is not really like their entire doom or anything if they end up not having a great year, they may get eliminated once, and that would still be fine, it is not a big deal.
Just let them get better, they do not have all that amazing team right now, and with time there will be better kids who will take up the jersey and will do better. Brazil is a football culture nation, they are not going to end up being terrible just because of a few seasons, they may miss some cups and do badly and they will still be fine. When was the last time they won something? It's fine, it should not be a big deal.
The current Brazil team manager has been relieved of his duties due to consecutive failures in the World Cup qualifiers but there is no word yet on who has been appointed as the new manager. Real Madrid manager Carlo Ancelotti was supposed to take charge of the Brazilian team, but he extended the contract with Real Madrid, which means that even in this season, Real Madrid is not getting this manager. In that case, maybe we are going to see a different manager to perform the duties of Brazil. I don't have any idea who the next manager will be, but whoever is given the responsibility of the next manager, the Brazilian football organization CBF must think carefully and then give the responsibility because they gave someone the responsibility before and he didn't do his job properly.
A good team but lack of a good manager, if a good manager takes charge of this team, the performance of this team will change a lot.