Bielsa is loved by Leeds fans because he ended their 16-year exile from the Premier League last season and is set to lead them to their best finish since 2002.
But the Argentine says: “I don't think I have triumphed in this job. The word triumph is something that evades me.
"To have been promoted, it was very difficult not to achieve this because the level of the team deserved it.
“Once we came into the Premier League, if we were between fifth and tenth, to have achieved this would have been a valuable achievement.
“But we're not and have not regularly been in these positions.
“I don't think anyone can describe it as a successful period."