Twitter considers exit of Dick Costolo in board reshuffle – report

Report says push to diversify boardroom means Costolo, who stood down in July as chief executive officer, could be among those on the way out

Related: Dick Costolo: why tech firms are set to face complex ethical issues

Twitter's board is weighing a shakeup that could involve the complete exit of its former chief executive officer, Dick Costolo, Bloomberg has reported, citing people familiar with the matter.