The document discusses the role of procurement professionals in public-private partnerships (PPPs). It states that procurement professionals can play a key role in PPP units by providing technical support and guidance throughout the PPP project process, from identification to evaluation to procurement to contract management. They can also build capacity for other public sector officials and help develop the PPP market for private sector involvement. Centralized PPP units have been created in many countries to better manage PPP programs, though the specific functions of these units vary between countries.