Table 2.

Themes and subthemes

Theme	Subthemes
Specific programme features meaningfully impact professional development at multiple levels	Cutting edge science; practical field project experience; emphasis on relational leadership fits with UK context; fostering of a diverse learning community; direct and multifaceted exposure to the US system
The coupling of a professional network and practical tools allowed participants to address system-wide problems in new ways	Robust professional network for both information and inspiration; strategic problem solving; relational leadership to engage diverse stakeholders
Participants describe a level of learning that sustained and amplified over time with increased complexity in their work	Carrying learnings forward; tools become ingrained; increase in relevancy