I'm quite sure this is the same dilemma (or at least part of the problem) which causes government projects to come in massively over budget and not delivering o

I'm quite sure this is the same dilemma (or at least part of the problem) which causes government projects to come in massively over budget and not delivering on their promised feature set. A recent project was delivered in Melbourne, Australia called Myki which I'm assuming was delivered under scenario A from my original post (you can read about it here: http://en.wikipedia.org/wiki/Myki#Criticism http://en.wikipedia.org/wiki/Myki#Criticism) I like the idea of the mixed model though, that has some potential to it.