Details on informants
| Organization | Position | Interview duration |
|---|---|---|
| Alpha | Head of Division | 80 min |
| Alpha | Head of Category Management | 50 min |
| Alpha | Head of Purchasing Unit | 80 min |
| Alpha | Head of Strategic Relations | 80 min |
| Alpha | Category Manager | 60 min |
| Alpha | Head of Procurement Unit | 50 min |
| Alpha | Procurement Manager | 80 min |
| Alpha | Head of Subdivision | 80 min |
| Beta | Procurement Director | 60 min |
| Beta | Head of Supplier Relations | 50 min |
| Beta | Head of Maintenance Unit | 50 min |
| Beta | Head of Investment Unit | 60 min |
| Beta | Supplier Development Manager | 50 min |
| Beta | Procurement Manager | 60 min |
| Gamma | Head of Division | 50 min |
| Gamma | Head of Procurement Unit | 60 min |
| Gamma | Head of Category Management | 60 min |
| Gamma | Procurement Manager | 60 min |
| Organization | Position | Interview duration |
|---|---|---|
| Alpha | Head of Division | 80 min |
| Alpha | Head of Category Management | 50 min |
| Alpha | Head of Purchasing Unit | 80 min |
| Alpha | Head of Strategic Relations | 80 min |
| Alpha | Category Manager | 60 min |
| Alpha | Head of Procurement Unit | 50 min |
| Alpha | Procurement Manager | 80 min |
| Alpha | Head of Subdivision | 80 min |
| Beta | Procurement Director | 60 min |
| Beta | Head of Supplier Relations | 50 min |
| Beta | Head of Maintenance Unit | 50 min |
| Beta | Head of Investment Unit | 60 min |
| Beta | Supplier Development Manager | 50 min |
| Beta | Procurement Manager | 60 min |
| Gamma | Head of Division | 50 min |
| Gamma | Head of Procurement Unit | 60 min |
| Gamma | Head of Category Management | 60 min |
| Gamma | Procurement Manager | 60 min |
Source(s): Authors’ own work
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