Feyenoord general manager Eric Gudde is angry that 16-year-old starlet Karim Rekik has been allowed to join Manchester City - calling the deal "stupid for all involved".
Rekik is the latest in a long line of youngsters to leave Rotterdam for English clubs before signing a professional contract, with Kyle Ebecilio joining Arsenal and both Nathan Ake and Jeffrey Bruma moving to Chelsea. The club are furious that they have lost another one of their best prospects and Gudde has hit out at a situation that he believes is bad for the player.
"This is unfortunate for Feyenoord and the supporters,'' he said. ''But in most cases these moves do not work out, especially for the boy himself. When they go abroad they are just 16 and it all seems great but if you look at the statistics the majority end in huge disappointment for the player.
"He can get a big foreign club but he never gets in the first-team and is then released and returns, several years later to the Netherlands. Even players who leave Holland when they've built a career here and even played for Oranje sometimes have it difficult abroad. Babel, Rigter, Drenthe, Maduro, De Ridder, Musampa, Stam - we all know the examples.
"It's hard and it's not just about being a good player. These lads are so young, though and the stats are clear - most of these adventures fail. Most of these kids are badly developed and then they're out on loan and then they come back here, and actually have lost progress.
"The fact that Holland develops better than England should be a reason for the English clubs to leave them here too. I can imagine deals between Dutch and English clubs on a development level, but signing 15-year-old is simply stupid. For all involved."
However, Rekik's agent Soren Lerby has insisted that he has done nothing wrong and that young players should not be denied the chance to earn more money.
"I am an experienced professional, I have been a player and a coach for many years and I well aquatinted with FIFA rules," he told De Telegraaf. "I respect those rules and nothing has been broken.
"If a player who does not have a contract with them wants to go abroad, I cannot stop him. You cannot blame Manchester City or the young player for a contract he gets."