| Evidence and local experience | Each qualifies particular claims; apparent conflict needs interpretation before a practice is changed. |
| Adaptation and retained function | A convenient local form may alter the mechanism or a protection on which the useful result depends. |
| Internal knowledge and independent challenge | A local facilitator knows the work but may share its blind spots or lack room to question it. |
| Immediate delivery and recipient capability | Supplying the result and helping recipients learn to obtain it are different, sometimes compatible undertakings. |
| Local action and external conditions | A useful change may depend on a decision beyond the implementation team. |