So what did I learn? At the obvious level it was
1) Relational knowledge - personal relationships with five new people
2) Their personal knowledge of the work they had undertaken and the ways in which they had brought about change in the organisation
3) Conceptual - their understandings about the way innovation/change had been accomplished
4) Awareness of my own learning strategy.
At a deeper and more sustained level I will do something with this new knowledge. Once I have the transcripts this knowledge will be organised and connected to my existing knowledge to help tell the story of change.