“…Others -for example, Faes et al (2001) -describe five profiles of effective buyers, including the go-getter, the classic negotiator, the caretaker, the traditional buyer, and the technical expert. More recent publications have identified new specialised roles in PSM -for example, the innovation promoter (Goldberg and Schiele, 2020). In PSM, Schiele (2019) identified and categorised seven roles, which provide a useful and relevant basis for the focus of this dissertation.…”