Celtic are set to take on Dundee on Tuesday night, and a win would take them seven points clear at the top of the Scottish Premiership table.
The Bhoys beat Hearts 3-1 at the weekend, but Deila has suggested that he may alter his team slightly at Dens Park.
The Norwegian boss has admitted that dropping Patrick Roberts, after he scored twice against Hearts, would be difficult, but most other places in the side are up for grabs.
“We might change it around a little bit but we have to wait and see how everyone is,” Deila said.
“Patrick will be hard to leave out after coming in and scoring two very good goals but there were also other performances that pleased me.
“Tom [Rogic] we will wait and check on later today but we have to listen to what the medical staff think.”
Celtic are still locked in a title fight, and their match against Dundee is far from a foregone conclusion.
Paul Hartley’s men head into the clash on the back of a 5-2 victory, meaning that they should be full of confidence.
The Bhoys will know the importance of being victorious, too, as they only have a four point lead at the top of the Scottish Premiership table.
If they are able to win against Dundee, Celtic will move seven points clear of Aberdeen, but if they are defeated then it will offer hope to Derek McInnes’ side that they could still win the title.