Former Leeds United captain Stephen Warnock has questioned whether Marcelo Bielsa's methods are suited to success in the Championship, while noting the Argentine has gone a substantial period without a trophy.
Leeds handed Bielsa the head coach's job in the summer and he has transformed the side's style of play, pushing the Whites into promotion contention.
The Argentine works his players hard, something which concerns Warnock, and has also insisted on operating with a small squad.
The Whites have adopted a more tactical approach under the Argentine this term too, with even more emphasis on fitness regimes that can build a team to meet the high-octane intensity of their game.

However, Warnock has questioned the approach in training by suggesting that it could become very demanding for the players and result in injuries that could cost them due to the gruelling nature of the Championship.
Warnock also added that Bielsa has a great philosophy on football, but insisted that the he might have to rethink his approach considering the fact that the Championship is a league like no other.
“They’re losing a lot of their players to injury at this moment in time and whether that’s down to the training regime, which I hear is seven days a week with not much rest and break time in between”, Warnock told Latics Live.
“He hasn’t actually won anything in his last 10-15 years as a manager either.
"He’s got a great philosophy on football.
"But as we all know the Championship is a different breed."
The Whites will be aiming to get back to winning ways when they travel to the DW Stadium to face Wigan Athletic in the Championship on Saturday.