In a very general way, I would say that at least part of the value is identifying risks or considerations that, if not thought through at the front end of the policy program development process, could be costly in terms of resources because of having to go in after the fact and make changes.
It's almost like avoiding a two-touch. If you figure it out at the outset, you're very clear about what the risks or considerations are and you're able to work that into your policy or program development. Then you're not caught by surprise at the end of the process and faced with potentially having to go back in and make regulatory changes or change the program requirements, etc. At that very high level, when it's done well, it avoids having to do that.