The Tottenham manager lasted less than a year in the Stamford Bridge hotseat, and has criticised owner Roman Abramovich over the sacking of his successor Roberto Di Matteo
The Portuguese was appointed by the Blues ahead of the 2011-12 season but was sacked and replaced by his assistant Roberto Di Matteo after just nine months.
And, after Di Matteo suffered the same fate this term - despite having led the west London side to their maiden Champions League triumph - Villas-Boas has hit out at the club's hierarchy.
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"There was a commitment from Abramovich and his word was given, yet there was a premature departure."
The former Porto boss was keen to underline his happiness at Tottenham, however, insisting Spurs are on track for a successful season.
"We're achieving what we've been asked to achieve," Villas-Boas added. "We're still in the Europa League and third in the Premier League."