Of course, that's how it's done. And markers like a young player delivering well at 3 consistent jumps in his career before the age of 24 (South American local club > First European club > First serious European club from a big league) will surely attract attention from a gifted football expert from a big club.
A guy passes all 3 tests he gives in his career at a young age, chances are he'll pass the 4th and achieve even bigger things. Those are key markers you need to look at, and somebody at PSG did. That's how proper talent spotting works.
Agreed.
I'll just add though in regards to Pacho, they also signed Berardi half a season before for 20m who was a miss. 6 months before that they signed Skriniar for free who was another best. So that's 72m for Pacho to be a success (40m Pacho fee, 20m Barardi, 12m Skriniar sign on fee) excluding wages.
So there are certain margins they have which we can't afford.