Author here, and also executive director at Hermit Tech now where we do things like this. Your approach has the core of how I'd go about it. The contract stuff is legit, though you don't need to buy a product for it.

The thing that is hard at big organizations isn't that executives need the data for meetings. The issue right now is that many organizations are already 3-4 years into building their analytics platforms, and Chief Data Officers worldwide are trying to prevent their role from disappearing. They're already very much "Mom, we have CTO at home" in many companies, as evidenced by the fact they're usually reporting to the CTO or CFO.

So at this stage, they've already told the business that the platform is "ready", and they are onboarding data sources. With no way to measure data quality, the only thing visible at the organization level is number of data sources onboarded. The fastest way to onboard data sources is to have good CI/CD and a solid developer environment, but this would probably result in slowdown for 1 - 2 months even if you had executive backing to bulldoze all objections from the IT department.

That's the sort of thing I can commit my team to as a business owner, but most executives don't have the nerve to slow delivery down and aren't losing money out of their pocket due to the inefficiency - I get to talk with a lot of them due to the blog's success these days, and many of them really are just employees with more status, with the same incentives. And to make it worse, the loss of nerve is actually understandable, because the type of team that would build something this bad will also waste those two months then still deliver slowly! But most people aren't thinking in terms this complex, and yes, I know it isn't that complex.

I'm expecting to pick up some work in this area at larger orgs in a few years when these leaders rotate out and new leaders rotate in and go "what the hell IS this?", but for now we're mostly aimed at helping smaller places do it right from day one.