Cook has been named England's new one-day international captain and Stuart Broad has been handed the leadership of the Twenty20 side in a major shake-up of the limited-overs teams. Andrew Strauss announced his decision to stand down as ODI captain to focus on his Test career, while Paul Collingwood's run in the Twenty20 job is over as England look to the future.
It means that England will have a different captain for each format of the game. Cook has previously led the team on the tour to Bangladesh last year when Strauss was rested, but for Broad it is his first captaincy role at a senior level and he'll now be at the helm when England defend their Twenty20 title in Sri Lanka next year.
