if you agree with me or not, England Cricket team is the strongest test side at present. they have a pure balanced side both batting and bowling. on the hand, West Indies is one of the weakest test team at the current situation. that's why they could do anything against West Indies.
if the West Indies team could come along with their best squad then the scenario would have been different, if Gayle, Samuels, Bravo, Ramdin and other best performers could play in this series then West Indies could win at least one or two matches.
The players are ready to play, but the WI board is playing some politics against the senior players. So all senior players are not playing in the main team, and they are making money in other country tournaments. But I think the WI board can bring all the senior players in world cup it's just my opinion.