The manager has sanctioned the arrivals of Luke Shaw and Ander Herrera since taking charge at Old Trafford, and insists he will assess the squad following the pre-season tour of the United States before pursuing further deals.
A number of players have been linked with a move to Old Trafford since the Dutchman's appointment, with the 26-year-old Colombia international reportedly the subject of a £30 million-plus bid.
"I cannot talk about Cuadrado, because if I say something about him the price will rise," he told reporters.
Barcelona are also understood to be in the running for Cuadrado as a replacement for Dani Alves, though Fiorentina are hoping to hold out for close to £40m for their prized asset after securing 100 per cent of his rights early in the World Cup.
"We'll see the best situation, if there was an offer of €50m [£40m] he would be hard to give up, but at the moment there has been no official request," sporting director Daniele Prade told Corriere dello Sport recently.