Let's say T&T selects Marvin Oliver
Let's also assume that his visa issue is a real one i.e.he is currently not allowed to enter US territory
Let's say that Marvin Oliver performs well for the National team and has shown to be an indispensable member of the team.
It's a fact T&T plays football in the CONCACAF region
By definition, we not onlyh play Caribbean Neighbours, but North and Central American's as well
It's also a fact that the preferred method of travel for our senior men's national team is via air
Our senior men's national team, in the course of qualifying for and playing in major tournaments frequently has to play against these neighbours.
Because of Oliver's visa issue, he is unable to play in the United States.
Seeing that the United States is not just a competitior, but also a host of a major CONCACAF Tournament like the Gold Cup and is a point of transfer between T&T and many Central American countries, as well as destinations to Europe etc, Oliver by definition will be inelgible to be selected for those games due to his visa issue.
Therefore, why should ANY Senior Men's National Team coach select Marvin Oliver? What's the point if he's inelgible to play against your strongest opponents in away matches?