He told the Bolton News: "We have always prided ourselves at Bolton Wanderers in knowing that everyone wants to play for the club. Everyone is in it together.
"There's no question that Diouffy has shown that while he has been here, but if the lad wants to go, let him go.
"Obviously we are going to miss a player like Diouffy, but we have got Jussi Jaaskelainen out of contract, Ricardo Gardner and Ivan Campo, all massive players.
"We need to secure their futures too, but none of them have come out and said they want to leave.
"Diouffy has and that's entirely up to him, but we can't just be thinking about El-Hadji Diouf."