Persuading players who are eligible for your national team to switch or maintain allegiances is one of the newer jobs for an international manager.
The topic has come back to the fore in recent weeks with a trio of examples involving England-qualified players.
West Ham United midfielder Declan Rice is reportedly set to choose England over the Republic of Ireland for his international football despite winning caps at senior level for Eire.
It is a big decision for a 19-year-old and one that is made possible by the FIFA ruling that allows a player to switch allegiances once if they have not played in a competitive international fixture.
Scotland manager Alex McLeish was unable to name Tom Cairney in his latest squad as he recovers from injury but the Fulham man, despite playing twice in friendlies for the Scots, is also qualified to represent the Three Lions.
The situation works in two ways, of course, and England Under-20 World Cup winner Sheyi Ojo recently said that he would consider his options if he was to be called up by Nigeria for whom he is also qualified to play.
In a fast-changing world where people move to different countries more often or are born to parents of different nationalities it is a scenario that will crop up more often than not.
And with the lack of top-flight playing time still a huge issue for England’s pool of players it is no surprise that no stone is left unturned in the search for new faces.