'NO DOUBT WE NEED CHANGE'

But England coach defiant

- David Charlesworth

BRENDON MCCULLUM will seek to fine-tune England's approach before the summer after admitting they went into their shells during a chastening tour of India.

Head coach McCullum and captain Ben Stokes won 10 of their first 11 Tests in charge but have lost seven of the past dozen following a 4-1 reverse in India.

The England pair have shown a resistance to making adjustments but they let several competitive positions slip against Rohit Sharma's side, demonstrating a lack of ruthlessness.

McCullum did not go into specifics about how his team can go to the next level ahead of home summer series against the West Indies and Sri Lanka.