I'm with TJ on this one. A great deal of what is left afterward is simply "why?" and how can I make my loss less pointless? So a thorough investigation is obviously important, and an open aspect to it so that there is no feeling of cover up would go a long way to dealing with those issues.
Further to that, a great deal of the problems with the NHS relate to a) the fact that to bring it about in the first place Doctors/Consultants were given a disproportionately large say in how it is run, (the logic for my statement being on a similar basis that just because someone is a good player for example, it does not follow that they will make a good manager in footballing terms). b) The NHS is used as a political football.
Ultimately, its a lot like gritting the roads. Want more grit? Pay more tax!
Personally, having had more of my fair share of the NHS in recent years, I have only ever come across one individual whose competence would worry me. Every other time I have been more than impressed with the committment and application of everyone I've ever had dealings with. The failings all seem to me to emanate from the management structure, and it is importnat to note that is NOT aimed at hospital administrators in any way at all.