I think the previous comment may have had the vested interest Dick and I notice you didn’t worry about that person being anonymous. I’m not sure how it’s all wrapped up to be the fault of Defence. Defence have a record of being able to procure complicated assets.
How this procurement got to be so hard is a bit beyond me. It simply needed a core specification with two separable portions. Each could then negotiate to their hearts content on their own portion knowing that the core specification would allow the interoperability that is required. This would have addressed the governance issues for both organisations.
Where do I line up for my $1M?