What England learned from a disastrous tri-series in Pakistan: The big questions they need to answer and why Brendon McCullum has a tough task in bid to challenge for World Cup, writes LAWRENCE BOOTH

England ended their ODI tri-series in Pakistan with a consolation victory over Sri Lanka by 55 runs in Lahore, but the win came too late to qualify for Saturday's final. The poor campaign raised significant questions about England's ODI form and their preparations for World Cup contention. Coach Brendon McCullum faces a tough task in addressing the issues exposed during the series.