The paper examine matrix structure and manpower development;a paradigm shift. The aim of this research is to determine the extent to which matrix structure improves an organisational manpower effectiveness as well as to ascertain how matrix structure increase organisational manpower efficiency. The content analysis methodology was used in this study. The data and information used in this study are from the existing literature and previous studies. The secondary data sources include textbooks, journal articles, reports and internet. Research question raised in this paper was explored by the concept of matrix structure. The findings of the research reveal that team motivation, problem solving, skills and knowledge acquired on the job enhance manpower effectiveness while the managerial skills required in the matrix structure centred on positive on the positive achievement of the firm and individual employee. The study recommends that careful attention should be paid to the creation of matrix structure in terms of coordination, communication and control.