Great theory, but MoD Procurement history is a sad litany of either ignoring the good lessons or repeating the bad lessons. It's a complex tale of well intentioned, but career driven short termers, versus dyed-in-the-wool specialists whose inflexibility is legend. I think when I was getting out of the pig sty it was called "Smart Procurement" but only the buzz-words and jargon ever really change.
Again, it's easy to criticise but where is the actual proof? A lot of time does go into lessons learned activities, but many of the causes are human nature. Have things improved since the Levene reviews or are different mistakes being made?
The main problem is that making decisions about complicated problems in a changing environment is hard, and will always be so. There isn't a right answer.