Bielsa was appointed back in June 2018 and went on to transform the club, ending United's 16-year exile from the Premier League by sealing promotion as Championship champions in 2020.
The Whites then stormed to a ninth-placed finish as a newly-promoted side and whilst the second season back has been a disappointment, the memories of some sensational games and unbelievable highs will never be forgotten.
Here we pick out a dozen of Bielsa's best in the Whites hotseat.
1. Leeds United 3 Stoke City 1 - August 2018
The Argentine's first game in charge at a sunny and packed Elland Road. Nobody really knew what to expect but the contest brought a first glimpse of Bielsaball for the first time. Wow. Picture by Tony Johnson.
2. Aston Villa 2 Leeds United 3 - December 2018
An absolutely epic clash at Villa Park in which Leeds were 2-0 down, only to fight back and record a 3-2 victory thanks to a late winner from Kemar Roofe. A Christmas craker. Picture by Tony Johnson.
3. Leeds United 2 Derby County 0 - January 2019
More about the backdrop to start with after the Spygate story broke and Leeds then brushed aside Frank Lampard's Rams on a Friday night at Elland Road to move five points clear in top spot. Picture by Bruce Rollinson.
4. Leeds United 1 Aston Villa 1 - April 2019
A 'dead rubber' supposedly with Leeds now only destined for the play-offs and heartache against Derby yet the Whites and Villa served up an incredible game in which Bielsa ordered Leeds to let Villa score a walked in equaliser. Picture by Bruce Rollinson.
5. Birmingham City 4 Leeds United 5 - December 2019
The scoreline says it all. One of the craziest games of Bielsa's tenure featuring several re-writes of the script at St Andrew's. A Christmas miracle. Picture by Bruce Rollinson.
6. Swansea City 0 Leeds United 1 - July 2020
Recognised as the game and the goal that went on to seal automatic promotion as Pablo Hernandez struck a dramatic late winner in front of empty stands. Picture by Nick Potts/PA Wire.