We kind of thought the same thing about Taty before he went supernova. Talles is still only 20 years old; plenty of room for his talents to flourish. He already took a pretty big step last year, no reason he can't make another big step.
yes. taty needed some time to learn the #9 but he and talles are very different players. talles thrives on the wing taking people on 1v1. taty was never that kind of player. you could argue he was better as a striker even while he was learning the position because he was everywhere and happy to run in behind.
i'm not saying talles can't learn the position, i'm just asking the question whether it's worth it considering how good he is as a winger? why can't he become a super star winger? why does the team want so badly to make him a #9? i'm just asking the question. i don't have the answers.