Norwich City boss Chris Hughton expects the winter market to continue to drag this week.
Norwich have been linked with a move for Gary Hooper and Danny Graham, but he admits he may have to wait until the end of the window before landing his targets.
"We are working hard but the majority of work is done in the last week or 10 days of the window," Hughton said.
"It's very difficult to bring in players at this time because prices are inflated.
"You have to make sure that any player you bring in isn't just an addition to the squad - they have to improve what you have got. We are working hard and we will continue to do so."