20/30 years back you could get a well trained group of 'lesser' players to achieve success.
Football has changed and gone massive, more so than ever before. The top 5 teams like Man City, Real Madrid, Chelsea all have good academies, and they will likely have 1/2 academy players starting in most games in the first 11.
The thing is, they have a pool of 50 players that could theoretically reach that potential. And if Aston Villa/Porto/Club Brugge/Shakhtar have a youngster that is better than 40 out of those 50, they will simply buy him.
The elite teams are made out of elite players.
So I'm not really hating Pep for doing it. Don't hate the player, hate the game.