Failure to arrest the slide, which has also seen the Blues lose three of their last four Barclays Premier League games, will test billionaire owner Roman Abramovich's patience to breaking point, with Chelsea having always finished in the top four and reached the last 16 of the Champions League during the Russian's tenure.
Villas-Boas acknowledged confidence was low, and said: "But that's when they expect the manager to inspire them. That's my job. That's my task, to inspire these people and motivate these people to change our faith."
He added: "The responsibility is mine and it's my task now to inspire and motivate them to take them to a win against Wolves and certainly after to a win against Liverpool in the Carling Cup.
"We have two games at home. We need to get the focus, concentration right, I have to inspire my players and motivate them, and we need our fans behind us in these critical moments."
Wednesday night's 2-1 loss to Bayer Leverkusen saw Chelsea drop to second in Group E and with Valencia completely overhauling their superior goal difference by beating Genk 7-0, it means Villas-Boas' side must either beat the Spaniards or keep a clean sheet against them at Stamford Bridge in two weeks' time to guarantee going through.
"We will need Stamford Bridge completely behind us to get the intensity right and the emotions right for the game," Villas-Boas said.
"It's in our hands to qualify. It's a game at Stamford Bridge and we expect to do our job. That's our responsibility and we don't want to let the fans down."
On Wednesday's encounter. he said: "We left our back exposed. So we need to focus and concentrate on these issues.
"We're all committed to this squad and to these players and we believe a lot in their talent and they believe in us, and we need to find a way out. When they go into a series of defeats like we going through now, we get into the details a lot, to try to get them right and we just have to continue to work and believe that the win is close."
Source: PA
Source: PA