Is it time for Cricket West Indies to bring back ICC Americas
There's a whole chapter dedicated to Kamau Leverock which covers many of these CPL-related topics extensively in my book "Inside the Selection Room". https://www.amazon.com/dp/1090751257/ref=mp_s_a_1_2?keywords=Inside+the+selection+room&qid=1575126647&sr=8-2
I feel Levrock has been hurt by the financial implications on counties when they field non English players.
Each county gets a fee per English player in a 1st XI fixture. It has been a barrier as well for players from the Netherlands. I have experienced many pushbacks on these players and this has been one of the main reason.
Of course, if England were interested in Levrock (like they were with Archer) then they would be able to twist the rules but I'm not sure.