The success of attracting nationals abroad to apply for National Professional Officer positions was somewhat limited, as the National Professional Officer salaries were not seen as attractive, particularly as compared with salaries earned abroad.
Il est fréquent que les missions prospectent auprès de candidats nationaux établis à l'étranger, pour les inciter à revenir travailler dans leur pays d'origine, mais cette démarche n'a guère été fructueuse.