This chapter describes the current procurement workforce of the Mexican Institute of Social Security (IMSS). It also assesses the capabilities and capacities of that workforce to perform its procurement duties. In particular, it discusses IMSS’ workforce planning and management practices (e.g. recruitment, promotion, and performance management) and highlights the importance of enhancing the procurement workforce’s training and development through competency management. The experience of various OECD countries is provided to illustrate potential improvements to IMSS’ human resource management.