The likes of Kyle Abbott, Rilee Rossouw, Dane Vilas, David Wiese, Simon Harmer, Hardus Viljoen and Stiaan van Zyl have all opted to play county cricket rather than continue to represent South Africa.
West Indies won the World Twenty20 in 2012 and 2016, but have had little success in cricket`s other formats recently.
Pietersen revealed this could be his last season in the English game as he looks to life away from cricket.
The Tigers' skipper said that the cricketers get paid for playing and they are just performing artists.
It is also believed that Tom Moody and Virender Sehwag are the frontrunners to be India’s next coach.
Cricket Ireland understand there have been no hiccups since and they stand ready to take their place alongside the game's established powers.
Almost 400 players from 10 countries have confirmed their interest in being part of the draft.
Pakistan's head coach Mickey Arthur also said after the final at the Oval that he would like to see the World XI touring Pakistan this year.
The best XI included four Pakistanis, three Indians, three Englishmen and one Bangladeshi, while New Zealand's Kane Williamson was chosen as 12th man.
In the ODI batsman rankings, India opener Rohit Sharma, who scored 123 not out in the semifinal against Bangladesh, gained three slots to reach 10th position.