Twelve-months on from the formation of ICBs, what are the key learnings from those delivering digital at system level, and what are the reflections from those working within partner trusts? What are the key differences between the CDIO roles, and how can they best work together to deliver better outcomes for patients, staff and their wider populations? How can ICBs genuinely add value, and avoid duplicating or performance managing constituent organisations? What does it mean to be a ?system convener? on digital?