Fan banner at Arsenal shows frustrations with Palace under Hodgson

Alex Howell, BBC Sport

In midweek the signs that the Crystal Palace supporters were turning against manager Roy Hodgson were there. The chants of 'you don't know what you're doing' were heard as Eberechi Eze was substituted with the team 1-0 down at Everton in the FA Cup.

If that hadn't grabbed the attention of the hierarchy and the manager then the banner the fans displayed during the 5-0 loss to Arsenal will have.

It read, 'Wasted potential on and off the pitch. Weak decisions taking us backwards'.

Frustrations have been building for a long time with a number of supporters feeling more should have been spent on the squad in the summer.

Talisman Wilfried Zaha left and the club signed Matheus Franca for a fee in the region of £15m with £5m in add-ons, Dean Henderson for £20m, Jefferson Lerma on a free transfer and Rob Holding for a small fee. Only Lerma has played regularly for Palace this season.

Some feel that more should have been done to support the manager and that the money should have been better spent on other areas of the squad when it was clear that Hodgson was going to be staying on after his successful spell as interim manager last season.

The club are focused on the long term future of Crystal Palace with the work on the new main stand due to start and money being put aside for that expensive work. This has meant that tough decisions have had to be made on where the club invests.

Exciting young players with high potential have been signed but it could be argued that does not marry up with Hodgson's ideals of building a solid team and favouring experience.

Injuries have also been cruel to the manager. Michael Olise was out for nearly six months with a hamstring injury before returning for nine games, scoring five goals and then picking up a new hamstring injury in a different part of the muscle.

Eze has also been on the treatment table at different parts of this season meaning the manager has not been able to field his strongest attacking side for most of the campaign.

When Hodgson took the job it was billed as a safe pair of hands to help the club reach the next stage but with just two wins in 16 games, it may be those in charge that feel something needs to change to stop the slide.

The transfer window has been open for 20 days and the club has not brought in any new players.

The Eagles next play Sheffield United on 30 January and fans will be hoping there are some new faces in the squad that day.