De Minaur actually has to improve. And he will also have to become very consistent in his performance. The reason being is that if he does not do this, even if he has really remarkable talent, he will not be able to produce the results that will propel him to the top of his field.
And I say that he has to improve because he does not have a stellar record against the top 5 players in tennis right now. So obviously he has to improve his performance. And consistency is a must for any player. There is no replacement for consistency in a player's career. In most cases, only having potential is not enough for a person to succeed.
about de Minaur it's interesting this statistics:
2016 2017 2018 2019 2020 2021 2022
Year-end ranking 349 208 31 18 23 34 24
He has a superb season on 2016/2017, and later a really impressive result reaching atp rank 31th on 2018 and 18th on 2019!
After this he has two years with slow decline with 23th/34th place in 2020/2021.
Nowadays he seems again on track at 24th place. However I think he is a strong player that can be a top 10 players in the next few years. It still has to explode its full potential, that's for sure.
They are interesting stats, it seems like he has reached a kind of limit and cannot progress
towards to top 10, or maybe that other players are doing more than him and have overtaken him
like Tiafoe who leapfrogged him into 19 position, this does seem like if he has the talent he needs
to work harder and possibly develop other aspects of the game to rise with other players.
It's altogether very interesting and really comes down to finer details like the mental side
of the game.