Design the change both top down and bottom up – as ‘form follows function’ we are working within three clinical specialities – cardiology, vascular and paediatrics – to develop the clinical models that the organisational form will need to support. There is a temptation to design the organisational form first followed by the clinical pathways, however we felt that in order to optimise the vision of developing local, sustainable health services, we needed to ensure the clinical model could be enhanced and patient outcomes improved.