Jack Harrison has detailed the incredible work that goes into Marcelo Bielsa's pre-match preparations.
The Leeds United boss is renowned for his meticulous planning and organisation, which was highlighted during his extraordinary press conference after the Derby County 'spygate' saga.
Every Whites man interviewed speaks about Bielsa and the intensity in which he works, with no stone left underturned.
Harrison though has offered some fresh insight, with a breakdown of how exactly Bielsa drills his instructions into his players before a match, with individual sessions using PowerPoint presentations and iPads.
"You sit down with him and you have a laser and there is this big projector and you have to follow yourself with a laser so he knows you're focused," Harrison told The Telegraph.
"Before each game, you have this individual meeting with him and he goes through your clips. He shows you what you can do well, what you can improve, things you should avoid or look out for.
"You can imagine the amount of work it takes. He shows you all the movements on the iPad.
"You can see exact situations that he has drawn out. He says 'these ideas and details I have got from the game are through 30 years of management'.
"The way he sees the game is incredible. That's why he has the reputation he has, with top managers all around the world saying great things about him.
“It’s a huge club and it’s really special to be a part of it; to be a part of history.
“We will take some teams by surprise with our pressing, our aggression and the intensity we like to play at and I think we have done exactly that at the start of the season.”