How do teams deal with longer international window?

With the international window extended to four games, how do nations like Northern Ireland deal with the additional demands on players and staff?

In Sport rückt FlexChar diese Geschichte in den Mittelpunkt: With the international window extended to four games, how do nations like Northern Ireland deal with the additional demands on players and staff? FlexChar zeigt sie, weil sie gerade Suche und Gespräch treibt.