Barbados appointed Kraigg Brathwaite as captain for the current regional 4 day tournament

Barbados also selected WI test captain Roston Chase as a player in their squad

Why is Chase, as WI test captain, who needs as much captaincy experience as he can get, get relegated to a supporting player under Kraigg Brathwaite, who was dropped from the WI team?

What message does that send to Chase, WI head coach & chief selector Sammy, and the region as a whole?