I am always in favor of clubs transferring such young and potential players. Andrey Santos, although there are doubts, remember that he is only 18 years old. He's promising and can give the club a lot of advantages after gaining some more experience. If the scout team liked him and gave him this money, he is definitely a player with skills. We just need some time. Remember he is only 18 years old.
If Chelsea can hone the skills of players and can bring out all their abilities at an unstable age, then they will produce good players. I also support the movement of teams that have goals in signing young players, not just Chelsea. Apart from saving costs, it is likely that the players they train will benefit them in the future, both for achievement and financial gain by selling them at high prices.
In my opinion, this is too hasty to offer such a high price, it is not a wise decision for Andrey Santos. When talking about potential players at Chelsea, I think there are many and on average, of course, potential players. In my opinion, the problem is in the training method for the players in the team to develop their football talent, if Andrey Santos is not properly trained to improve his abilities I think it will be useless to buy even expensive players who have great potential.
I like to see young players with potential being drafted into big teams but if the standard of training is poor I think it will hinder their development.
And there probably won't be a high selling price for profit in the future.