Marcelo Bielsa has always been a stickler for minute details, illustrated plenty of times during his Leeds United tenure so far
For anyone who wasn't aware, the post-Spygate press conference where Bielsa revealed his tactical analysis to all in attendance would soon have them clued up.
The Argentine has always studied his opposition in ridiculous detail, which goes some way to explaining his success as a manager.
That level of in-depth studying dates all the way back to the early 90s during the infancy stages of Bielsa's career, as explained in Tim Rich's latest books, The Quality of Madness: A Life of Marcelo Bielsa.
"In the 1990s, Bielsa was working in Mexico, in charge of Atlas Guadalajara.
"One of the Atlas directors, Samuel Alvo, suggested Bielsa took his family for a break in Puerto Vallarta, the jewel of Mexico's Pacific coast, made famous as the home of Richard Burton and Elizabeth Taylor.
"As Alvo related: 'They had barely arrived at the hotel when Marcelo asked for two video recorders and shut himself in his room to watch the last 10 matches of their next opponents, Puebla, on videos which he had packed in his suitcase. He put his father-in-law to work taking notes. His feet did not touch the sand.'
"The game against Puebla was a friendly."
Another friendly reminder, as if you needed it, on why 'El Loco' is regarded as one of the most respected coaches in world football.
