I can't be bothered finding the article, but there is a long...

I can't be bothered finding the article, but there is a long article where Mark Fisher and Patrick Canion described the full process. They mentioned that for iPac's transition there was a 6 month period where they had to essentially pay to maintain incumbent staff in addition to paying IAM. He also mentioned it was a very difficult transition process as the team had to fundamentally change the way they do things.

If it was hard for iPac, it'd be even harder for an organisation of NAB's scale, especially considering how large and disparate their systems are. There'd also be huge compliance issues.

I'm not saying the MOU itself will entail a large upfront commitment, just that the motion of adopting IAM's solution is a huge time and effort commitment. It'd be a game changer but they probably have to contend with a lot of internal business as usual priorities before thinking about this.