IT organisations and organisations with IT departments frequently procure project management training as part of their initiatives to improve business outcomes through professional education. This paper utilises the results of a research study that focused on the training of the project management methodology PRINCE2 in an organisation where IT was one of the departments. The longitudinal study over two and a half years reported on the adoption of the PRINCE2 project management methodology by sixteen employees following the successful completion of a PRINCE2 training course. Two different outcomes were observed: some individuals continued to develop their interest in PRINCE2 and looked for a stable network that will support their practice, even if they resigned from the organisation. The other outcome was that other individuals ceased using PRINCE2 for their projects if there was no imperative given by the organisation to use it and no example set by others in using it. The adoption outcomes from this study have implications as to the interventions that need to be implemented by organisations to derive the value from an investment in professional vocational education in project management for all relevant professionals.