Military contracting will always be frightfully hard.

Generals have to make judgement calls about what will work in the next conflict - talk about incomplete information - while the future enemy’s preparations and even identity is unknown. Then this has to be translated into something that can slot into existing military systems.

To say nothing of political and career considerations, moving budgets, revolutionary new ideas that will come along, training and culture.

And if they get it wrong, the bad guy wins the next war.