'El Loco' translated as the Crazy One, has played his part in so many extroadinary moments this season and we've had the difficult task of wiggling them down to just 15. Click and scroll through the pages to discover the moments we've gone with:
He was VERY complimentary on his arrival: "I have always felt it was important to wait for the right project to come along and so when a club with Leeds United's history made me an offer, it was impossible to turn down."
Stoke City were tipped as the early favourites to achieve immediate promotion to the Premier League, though it was Bielsa and co that would stamp their authority, dismantling Gary Rowett's side 3-1.
Photographers gathered round to watch Bielsa take his seat in the Elland Road dugout for the first time, yet would be met by the Argentines infamous blue bucket. "I have nothing to add. It's a comfortable bucket," he said.
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Bielsa and Lamrani come as a pair! On the opening day, Bielsa admirable attempted to speak English with Lamranis help. However, now, Lamrani does the talking for the former Marseille manager.
"My goal is to publicly apologise to Crespo because I know I didnt tell him the truth. It was a lecture forever, I learned that lecture, but it was something I already knew." Crespo accepted his apology
Remember that screamer Bamford scored in training that was well-publicised? Yeah, the goal was good, but Bielsa's reaction was even better, running around 50 yards with his arms wide open ready to embrace his summer signing.
One of Bielsa's coaching staff was caught hiding in a bush - spying on Derby's training. It almost became a bigger debate than Brexit! In the end, Leeds were fined 200,000 and the EFL implemented a new 72-hour rule.
Unfortunately we don't have enough characters to sum it up - but who needs reminding anyway. It was nothing short of extraordinary as Bielsa detailed to the local and national media just how in-depth his and his team analysis is.
Pep Guardiola and Mauricio Pochettino are just some of the elite coaches to heavily praise Bielsa. Guardiola referred to him as one of the best coaches in the world as the Spurs boss said he was a father figure to him.
With all the issues surrounding Spygate, it's fair to say fans from wider afield warmed towards Bielsa after he mulled over the 1-0 defeat crouched down with his head facing the floor. Poor Marcelo.
From handing out sweets to children and doing raffles at the Leeds training ground - which presented the kit man with an 11,000 Volkswagen Polo. His kindness and generosity created a booming atmosphere.
One of the most incredible acts of sportsmanship world football has ever seen after Bielsa ordered his players to let Villa score after complaints over Mateusz Klich's opener. He certainly enhanced his kind reputation that day.
Bielsa astonishingly admitted he paid the Spygate fine out his own pocket: It's a financial sanction the club received not against me, but I am responsible for it and that's why I paid from my pocket the sanction.
We've always alluded to their relationship and this was another great moment as Bielsa struggled to pronounce Ipswich. He did it that many times that it brought it a big grin from Lamrani as Bielsa accepted defeat.
A month after encountering an awkward moment with a Sky reporter, Bielsa lost his cool after a journalist referenced Spygate on Sunday, calling them ignorant and that they deserved a response without any content.