Chelsea's John Obi Mikel has criticized former coach of the Blues, Andre Villas-Boas, saying it was the lack of communication with the players by the Portuguese that led to his eventual firing.<br /><br />''The communication was not right. AVB is a great manager. He has done well for himself and is only young. But when you are young, coming into a business like this you are going to make mistakes,'' Mikel told <i>The Sun UK</i>.<br /><br />Adds Mikel: ''From the start of this season, I was one of the key players in the team. But there were a few rotations early on and it was difficult. You think you have played well in a game and the manager then leaves you out. You don&rsquo;t know the reason why. Things like this went on through everyone&rsquo;s head and not just mine.''<br /><br />Chelsea end their EPL campaign on Sunday with a home game against Blackburn Rovers. To qualify for the lucrative UEFA Champions League next season, they have a mandate : to beat Bayern Munich next Saturday.<br />