To unburden his captain Jos Buttler and unlock his vast potential, Brendon McCullum has alleviated him of keeping wickets.

After two tough World Cups and now with a new white-ball coach, England come into the series with a number of new players in their roster

Buttler emphasised that he was unfazed by the busy cricket calendar and was eager to take on the challenge of playing against India, a top side in their home conditions. With the Champions Trophy scheduled for February 19,

Brendon McCullum 's era as England's white-ball head coach gets underway in Kolkata on Wednesday, with a promise to carry over his Test team's focus on aggression and entertainment, both in their upcoming series against India and on into the Champions Trophy, and a faith that captain Jos Buttler' s "best years are yet to come".

England begin their white-ball era under Brendon McCullum in a Twenty20 series against India beginning in Kolkata on Wednesday with the coach promising the same attacking brand of cricket that has been the hallmark of his coaching.