Starting for Brazil isn't the flex you think it is. Have you actually looked at their squad of available talents? They have
NO quality strikers, to many people like yourself think of classic Brazil when you say their name, they are faaaaar from that. They are bloody 5th in the World Cup Qualifiers FFS. Before the WC expansion they wouldn't even be qualifying automatically this year, they would have to go play the international playoff.

Richy starting occasionally and it is occasionally these days for Brazil means the grand total of fudge all in 2025. It's no indicator of any sort of quality or ability.
I think in general terms a different coach could get us playing more progressively, that part I don't disagree with. But at the heart of it all, I don't believe that solves the problem. I think, sure play more progressively, play more openly by all means but the results will still be disappointing because this is a frankly
average side and squad. Just think back to 2015-2017 who of the current squad gets in any of those starting 11s? The only argument is Kudus in place of Lamela, the rest of the squad wouldn't even get near.
This is an average squad and an average squad with an average manager will get average results. Now maybe if we had a great manager he could indeed get them to overperform as Poch did but I just don't think that's an intelligent approach to take. To keep firing managers, constantly shifting through searching for the one true Messiah who is able to significantly get the players to over perform their standard abilities. Instead we actually need to improve the quality of the team, then we can look at what the coach is or isn't able to achieve imo.
The quality of the players you have will always have a more direct impact on your long term results than the man in charge.