There is a buyer for every product, Manchester United is in no hurry to let all the players go, because so far they are only giving and not getting new players in return, and so they can slide into the relegation zone. I understand that Amorim wants to get money for new transfers, and they want to get as much as possible, so they want to get as much as they ask for, although the cost of players is determined by the market and not the team that sells.