Graham Westley believes his new-look Preston side is starting to show its true potential following a summer of change at Deepdale.
Westley has revamped his North End squad over the last four months, starting this season with a promising 2-0 Capital One Cup win over Huddersfield.
Two draws and a disappointing 1-0 defeat to Shrewsbury followed in the league before Tuesday's emphatic 4-1 cup triumph over Championship side Crystal Palace - a sign Preston are heading in the right direction.
Speaking ahead of Sunday's home clash against Swindon, Westley said: "I keep talking about an evolution. It's very difficult to bring 17 new players in and to get them to gel. I thought the performance against Huddersfield was outstanding, as good probably as it could get at that stage.
"We've not lived up to that in the early league games, we've played much more in the league games like I probably thought we would do. We've stuttered with our forward game - we've passed and retained the ball well, our possession's been good, but we haven't really been that clinical.
"That can happen when you're pulling a side together. When you're going through that sort of change the fluency of your attacking game is often lacking, but we've defended okay on the whole - we're certainly looking better organised - and the other night was a step forward again. We were a lot more clinical going forward and the team performed well."