The Whites have come out of a difficult run of two victories in 12 by winning four on the trot. Whereas the others were 1-0s, they powered away from struggling Hull City after half-time to win 4-0.
And by scoring the last two goals, substitute Tyler Roberts has put real pressure on centre-forward Patrick Bamford.
“It was difficult for us,” coach Bielsa said afterwards. “I hope from now we can keep this efficiency.
“We know we played against a team who sold their best two players and had five or six players injured.
“We have to put our performance in the right context.”
Leeds went ahead through Luke Ayling's deflected shot in the sixth minute and rattled the crossbar through Pablo Hernandez two minutes later, but they did not really take control until the second half or give the scoreline a more realistic look until the final 10 minutes.
Hernandez doubled the lead two minutes half-time but a brilliant performance from Hull goalkeeper George Long kept them at bay until Roberts scored twice in the final 10 minutes.
Although he can also play in midfield, Bielsa has long seen Roberts as an alternative to Bamford and with Jean-Kevin Augustin injured , he took his chance, doubling his goal tally for the club he joined in January 2018.
“Clearly he is an option,” said Bielsa. “Tyler can play in this position and we normally have two players to fight for each position.
“He can be an alternative for Patrick, or for (Mateusz) Klich and Pablo as a playmaker.
“When a striker scores, of course it has a high value.”
The game was Leeds's first since goalkeeper Kiko Casilla's eight-match ban for allegedly using racist language in September's match at Charlton Athletic.
The away fans made their feelings known throughout the game, and Casilla maintains that he did not make any racist comments to Congolese forward Jonathan Leko. His guilt was decided on the balance of probability.
The ban was only handed down on Friday night, and teenage goalkeeper Illan Meslier, on a season-long loan from Lorient, made his Championship debut as a result.
“He was calm, confident, he took risks, he was good in the aerial play and he gave us the feeling he was confident,” said Bielsa.
The Argentinian had little to add when asked about the punishment.
“The authorities passed their judgement,” he said. “Kiko and the group made their feelings known. Any contribution I make is not important.
“We must accept the rules and the decisions.
“The club and Casilla have given their point of view. Kiko is the most important person in this situation, he is living it.
“We are all against any kind of racism or discrimination. This is very clear.
“The effect the ban has on his spirit is clear. It's not just something professional, it will impact on him personally too.
“He will receive all the love he has shared with us.”