Hodges' model? Simple: it's a rich, complicated, complex picture
Figure 2 'works' and not merely because it is clearly 'all political', but I would have swapped 'leadership reforms' with 'service delivery forms'. Trying to emphasize leadership at the individual level empowered to actually effect change. This could quickly change as per the situation. I also appreciate the jigsaw graphic.
You soon appreciate the complex nature of health care:
Primary, Secondary, Tertiary, Quaternary care and prevention. Add social care, welfare, all the fields of medicine, surgery, nursing, education, policy, information, literacies, human rights, consent, mental capacity, mental health law, forensic psychiatry, self-care, local, national and global health, urban, rural, remote, virtual environments, ethics, developed and developing nations, ecosystems and funding.
And this just scratches the surface ...