Juventus coach Massimiliano Allegri believes it's useless to sign players who can add nothing to the squad.
The reigning Italian champions failed to add quality to their squad, mostly because of the exorbitant fees paid by other clubs to secure the most important players on the market.
"We agreed with the club that we would have only signed top quality players," Allegri told reporters at the UEFA coaching seminar in Nyon.
"This wasn't the case but in Europe it's not easy, just look at the signings made by Manchester United, Real Madrid and Barcelona.
"Signing players who would eventually give nothing back is not worth it, it's better to stick with what you have and this Juventus squad is strong."
Having failed to sign top players during the summer transfer window, the Bianconeri did however manage to keep hold of Chile international Arturo Vidal.
The midfielder was heavily linked with a move to Manchester United but according to the manager, the player was never for sale.
"Vidal was never on the market," added the manager.
"Since I arrived, the club insisted that he would have stayed and this was the case.
"We also signed Pereyra, Romulo, Evra and Coman, a young lad who did well in the first game of the season.
"Our objective is to do well in the first games of the season and then wait for the January transfer window.
"In March the Champions League becomes a completely different competition, we just have to be patient."
