The Elland Road dressing room is full of examples, but nobody typifies the effect that the Argentine has had on the Whites better than Mateusz Klich.
The Poland international has been a virtual ever-present for Leeds since Bielsa took over in the dugout, and the player has been quick to acknowledge the impact his manager has had on him.
“I read the words of coach Bielsa in which he complimented me, but this is not the first time,” the 30-year-old said on Sunday.
“It is nice to listen to such words, but in private conversations there are not only compliments. I know I have to keep my feet on the ground and work with all my strength.
“I have proved a lot to myself for sure. My adventure with foreign football started badly for me. I was lost in Germany, I don’t think I was ready to play in the Bundesliga, but I wanted to stay overseas, wandered around clubs, and finally ended up in Leeds, which turned out to be my place on earth.
“I found a coach who trusted me and helped me.
“Thanks to this, I can play in the best league in the world, where not everyone is able to meet the requirements. Apparently, I needed time to see football.”
We’ve gathered the best of today's Premier League transfer speculation below...
1. GLASGOW, SCOTLAND - APRIL 03: Akeel Francis of Falkirk vies with Kris Ajer of Celtic during the William Hill Scottish Cup third round match between Celtic and Falkirk on April 03, 2021 in Glasgow, Scotland. Sporting stadiums around the UK remain under strict restrictions due to the Coronavirus Pandemic as Government social distancing laws prohibit fans inside venues resulting in games being played behind closed doors. (Photo by Ian MacNicol/Getty Images)
Celtic’s Kristoffer Ajer will become Newcastle United’s first signing of the summer transfer window in a deal worth around £6m. (Mirror) (Photo by Ian MacNicol/Getty Images) Photo: Ian MacNicol
2. Toon eye double Chelsea loan swoop
Newcastle are hoping to successfully scour the loan market once again this time with a double raid on Chelsea for Tammy Abraham and Billy Gilmour. (Northern Echo) (Photo by Manu Fernandez - Pool/Getty Images) Photo: Manu Fernandez - Pool
3. Brighton want Gonzalez
Brighton have renewed their interest in Stuttgart's forward Nicolas Gonzalez.The Seagulls are weighing up a fresh attempt to sign the versatile 23-year-old Argentina international who they were also keen on a year ago. (Daily Mail) (Photo by Pool/Ronald Wittek - Pool/Getty Images) Photo: Pool
4. Seagulls ready to sell Bissouma
Brighton are ready to sell Yves Bissouma this summer and the player favours a move to Arsenal over any other club. (Evening Standard) (Photo by Mike Hewitt/Getty Images) Photo: Mike Hewitt
5. Oostende's Jack Hendry and Gent's Milad Mohammadi fight for the ball during a soccer match between KV Oostende and KAA Gent, Sunday 06 December 2020 in Oostende, on the fifteenth day of the 'Jupiler Pro League' first division of the Belgian championship. BELGA PHOTO KURT DESPLENTER (Photo by KURT DESPLENTER/BELGA MAG/AFP via Getty Images)
Burnley transfer target Jack Hendry says he is unsure of what the future holds for him as he prepares for Euro 2020 with Scotland. (Various) (Photo by KURT DESPLENTER/BELGA MAG/AFP via Getty Images) Photo: KURT DESPLENTER
6. Battle on for Moreno
Villarreal forward Gerard Moreno has been linked with a move to Newcastle United and West Ham United. (Calcio Mercato) (Photo by Michael Sohn - Pool/Getty Images) Photo: Michael Sohn - Pool