In selecting the West Indies squad, I think you start with who are your bankers going forward?
At present, I'd say that gives you Crawley, Root, Stokes, Robinson (if he does the conditioning work he needs). Archer of course would be if he was available.
Bairstow probably too, if fit, but he has to be given a consistent role. For me that's 5/6 bat and top slipper, with Foakes given the gloves. Anderson, Broad and Wood are around and about though I do think at least one younger bowler should be blooded.
So we need two top order bats, two middle order squad players, a seamer and a spinner. And the problem is you could genuinely perm any 6 from about 25 with equal likelihood of success.