Preston boss Simon Grayson admitted his side's 1-0 win at Leyton Orient was the conclusion of a week of intense preparation.
North End, who won it through Joe Garner's first-half stunner, became the first side to beat Orient at Brisbane Road this season and also stopped them scoring for the first time.
And Grayson insists the win was planned on the training ground.
"They did everything that I asked them to do from first thing on Monday morning until 5 o'clock, they had to put bodies on the line and they had to work for each other," he said.
"That was the thing that we made very clear to the players when we started our preparations for this game.
"When you look at the overall play, we were very god from start to finish. In the first half, I thought we were very disciplined and controlled the game, passed the ball around well and Orient rarely threatened us in that period.
"It was a great goal from Joe Garner that put us in front and then you expect Orient to come at you because they are a good team, they are not at the top of the division for no reason.
"But when we had to battle and scrap and make last-ditch challenges, we did that. Orient work you extremely hard, they close you down and stop you playing and we had to be better than them at doing that.
"Every one of our players worked so hard for the team and contributed in a fantastic way."