New Tottenham Hotspur manager
The 34-year-old was sacked just eight months into his former post in March, when the Blues were outside the top four of the Premier League.
However, under the guidance of then interim coach
Villas-Boas was lured from Porto, where he had won the UEFA Europa League, after Chelsea met his release clause of
The Portuguese coach would not go into specifics, but maintains he was let down by the Blues billionaire Russian owner.
"I respect the decision of the owner of
"I told him that for me it was him quitting on me when he had been so much involved in the beginning in bringing me in and he was the one also who was not putting up to the things he promised."
The Spurs boss continued: "It is all very well that you cut the project short and Chelsea go on to win two trophies and you say how wonderful the squad was, but at the beginning nobody believed in that squad when we put it together.
"It was a tremendous learning experience which I am grateful in some ways to have gone through it because it makes me a better coach and a better person at this time.
"But the decision to cut it short was not mine and for Chelsea to have won the Champions League and to have won the FA Cup was because we were still in those competitions.
"I had the opportunity to win them cut short and I had cut short the opportunity to qualify for the Champions League when I was just three points off the fourth position, this is what I recall from the day when I was sacked."
Villas-Boas insists he has taken much on board from his short spell in charge of
"I am not a guy who is able to criticise anyone in public, but I am not a guy who promotes individuals in public," he said.
"I understand now that certain things can be done better and in the end you evolve in different ways.
"Hopefully I can apply the different things I have learned properly."
Despite his difficult spell at Chelsea, there were no shortage of offers for the former Porto coach.
However, Villas-Boas admits making an immediate return to 'what is arguably the best league in the world' with Spurs was 'an obvious temptation'.
Spurs decided to go in a new direction after sacking
"Hopefully I can build on from what Harry left me with, pushing towards even more ambition," said Villas-Boas, who has penned a three-year deal at White Hart Lane.
"But if we want to go for it [the championship], then it is something we have to assume from the start.
"Other squads are evolving and you can't always compete with Chelsea and Manchester City for players, but we are trying to put together a squad that makes us compete for the title."
Tottenham has signed Belgian defender Jan Vertonghen and
However, the future of playmaker
Former Tottenham midfielder
Villas-Boas indicated there could be a role in his backroom staff for veteran defender
"There are still discussions regarding what is the best step," the Spurs boss said.
"Ledley has a tremendous past as a footballer and it is up to him to share with you what his decision is."
Departing Everton defender