Yeah good luck. I don’t think any hr decisions have ever been about data; it’s about following norms. If you can get the rand corp or heritage foundation to adopt this policy then maybe corporations would look into it.
That being said, I like to think that startups growing into large corporations have an opportunity to be better when it comes to things like performance management.
Most of the big companies just throw endless interviews, high pressure firings, and a lot of money at the problem and make the people below them solve the rest of the problems.
They see how much they are paying for the mess, but any medium term effort is torpedoed because of all the other things the business focuses on (lack of resources for the process and training), and other powerful individuals who want to put their own brand on hiring and firing who have significantly more ego than sense.