No. The "independent producer" who speaks fluent VN and has had total access in and out of VN for the last 25 years is the key. He understands USA politics, and made the overtures to the VN govt about how to coach the "witnesses" for maximum Kerry advantage. He is well enough established in VN that the VN govt bought his plan and went with it.
On another point, I'm still wondering how Koppel rationalizes the date of death on the NVC tombstone of Jan. '69 with the firefight date of Feb. '68? He took a long time to die? ; )
Here's what I have found out so far regarding the "freelance producer". His name is Kyle Horst aka R. Kyle Horst. He formerly worked for the United Nations (1980s) as did Teresa Heinz Kerry. At the UN he helped Vietnamese refugees relocate to the USA. He also worked for World Vision International (Christian organization) in Hanoi but apparently no longer does. I can find nothing which he has ever "produced" and suspect that ABC merely named him as such as a matter of convenience.
The UN connection to Teresa may just be coincidence, then again he may know her or they may have mutual friends at the UN. She used to do quite a bit of charity work and he seems to always be involved with sorts of efforts.