Let the West Indian players develop their game against weaker sides (New Zealand, Bangladesh, Pakistan, Zimbabwe, Ireland, Australia A, England A, India A, South Africa A). At the end of each calendar year, the top side from the lower division gets promoted and the bottom side from the top division goes down (with variation possible in the number of teams in each division depending on the number of strong teams). The A teams would also be varied depending on depth and which teams are strong. This would also have the added effect of giving some meaning to the ICC Test championship table. The lower division teams would still get to play the top level teams in series of meaningless ODIs as they do now (hello Chappell-Hadlee series). Anyone from Fremantle could tell you that getting flogged every week doesn't make you a better player.
And obviously, pitches need to be prepared so that there is something in them for bowlers. Low scoring test cricket is much more exciting than games where both sides make 500 in the first innings and sporting declarations are required to make a contest.