Pakistan Cricket Board chairman Shaharyar Khan has confirmed that Stuart Law was their first choice to be the new coach of the national side but the Australian has turned down the opportunity as he is not available to take over immediately.
Last year's World Cup finalists Australia and New Zealand have retained the top two positions on the ICC ODI Team Rankings following the annual update.
Australia have extended their lead at the top of the ICC Test rankings while South Africa have continued their alarming slide, dropping to a lowly sixth place.
Pakistan have named a 35-man training group to prepare for the tour to England in June and July, but have left out big names in Shahid Afridi, Umar Akmal, and Ahmed Shehzad.
Former England coach Peter Moores has revealed that he turned down the chance at the Pakistan top job, but felt the move would not be the right one for his family.