"I would like everyone to go back and carefully re-read ghdprentice's post. I think his logic is excellent and could form the basis for consensus. Thoughts?"
Many thoughts are already out there, and I have not changed my opinion that assigning percentages of importance to each item in the chain may make you feel good, because you can have a feeling of having achieved something, but it's worthless, because we each seek a slightly different goal and there are hundreds of ways to get there.