It is no doubt that the key resource for every society's economic development and sustainability is the human capital. This, in order words, would mean an active work force. Businesses strive on labour, and the need to respond to the ever-evolving global community has made the use of some labour and employment practices like casualisation and triangular employment relationship more attractive to employers, than the conventional employment model. The various issues pertaining to this trend in labour and employment have also created a new dimension in the development of the Nigerian labour jurisprudence by the National Industrial Court of Nigeria. This is so, particularly as it relates to the application of international best labour practices to casual and triangular employment relationships.This article identifies some of these work arrangements, albeit unconventional employment relationships, and highlights some of the challenges in relation to these work arrangements, while also proffering possible solutions towards having a better and all-inclusive work force as a pivotal path to a sustainable economic development.This work reviews the applicability of international best labour practices in the Nigerian labour court as they relate to contemporary workplace practices and issues of decent work, equal opportunities and privileges, and fair labour practices, while also considering Nigeria's socio-economic realities, labour policies and the local laws.