Barcelona presidential candidate Jordi Farre has hit out at the sale of Gerard Deulofeu to Everton, saying: "They've destroyed La Masia."
On Thursday, Everton announced they had agreed a deal to sign the player for €6 million.
Deulofeu, who spent the 2013-14 season on loan at Goodison Park, has agreed a three-year contract with an option for a further season and will join on July 1.
But Farre voiced anger at the departure of the home-grown winger, with Marca quoting him as saying it showed there were problems with Barcelona's renowned academy and youth system.
His sentiments were echoed by fellow candidate Toni Freixa, quoted by the newspaper as saying: "Deulofeu's departure is an example and consequence of the fact that the current La Masia model isn't the best.
"We have to identify what's happened and solve it so that it doesn't happen again."
Agusti Benedito, another candidate, said he believed Deulofeu was "a player with the qualities to have stayed at Barcelona."
But he added: "I'm not in a position to say whether it's a mistake to let him leave or not, because there are probably factors we're not aware of."
Despite outgoing club president Josep Maria Bartomeu having stepped down to fight the election campaign, business -- including the sale of Deulofeu -- is still being done at the Camp Nou.
But Joan Laporta, standing for a second stint as president, said it was wrong for such deals to be agreed before the election of a new board on July 18.
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"There is a lack of ethics," he added. "For sure, for a month, the interim board could have waited until the new president arrived.
"It is an income which will be attributed to the outgoing directors. I do not know what reasons the interim board would have. In this way they could sell any player, which should not be done."