England white-ball coach Brendon McCullum wants Kevin Pietersen to challenge him with ideas to improve the team, while stressing professional standards. Pietersen has joined the coaching staff ahead of England’s Sri Lanka series and next year’s ODI World Cup.

Sept 15 : England's white-ball head coach Brendon McCullum said he wants newly-appointed mentor Kevin Pietersen to shake things up and has encouraged the former Ashes and Twenty20 World Cup-winning batter to speak up if he has ideas on how to improve the side.Pietersen was appointed last week and joined the c