Imagine if any sort of change is possible in terms of regulation transparency, etc. You are tasked with writing a tailored / scoping a way to manage human sources:

Could you describe in words how to make a friend, or courtship that applies to every situation, or every person, and every situation?

Try to quantify how disruptive it is (or isn't) to send in a source, verse tap lines, etc. How does it effect their life?

Does it involve a foreign target or a US one? Should they be dealt with differently?

Can you write a regulation something flexible enough a wide array of circumstances / need to acquire information can be satisfied, but minimize intrusion upon people?

If someone had a better idea, what's wrong with that? But most people, including informant handlers themselves - which are human beings also - can't even figure out own personal relationships. I could only imagine how traumatic their family, love and social life has been for them to get in that position.