| Job title | Stakeholder in | Exemplars of | Selection criteria | Estimated population | Number sampled |
| Programme Managers | Project Planning | Information-rich source as Strategic Planners | Knowledgeable experts with access to email | 10 | 4 |
| Project Managers | Project planning and project scheduling | Planners and Managers | Knowledgeable experts with access to email | 20 | 5 |
| Lead Engineers | Project planning and project scheduling | Specific strategy-sensitive projects expertise | Knowledgeable experts with access to email | 50 | 23 |
| Project Engineers | Project planning and project scheduling | Planners and schedulers | Knowledgeable experts with access to email | 53 | 12 |
| Project Controls Managers | Project scheduling | Tactical planners | Access to email | 63 | 12 |
| Procurement Managers | Sourcing materials and services required for projects | Inter-project planners | Knowledgeable experts with access to email | 16 | 7 |
| Project Planners | Project scheduling | Operational Planners | Knowledgeable experts with access to email | 21 | 3 |
| Cost Analysts | Project scheduling, costing project activities and cost variance analysis | Sponsor-facing project professionals | Knowledgeable experts with access to email | 6 | 3 |
| Project Administrators | Reporting on projects against schedules | Sponsor-facing project professionals | Knowledgeable experts with access to email | 11 | 5 |
| Total estimated/sampled | 250 | 75 | |||