I like to listen to people, read group discussions, read expert opinions and make lists. So, from numerous sources, I made an unranked list of what LOTS of people regard as their biggest SCM problems. Then I searched out an expert opinion on what are the biggest SCM problems. The one I liked best was “Top Supply Chain Challenges” from the Supply Chain Council (the SCOR people). Next, I slotted the opinions of the workers in the trenches into the five categories from the Supply Chain Council. I could be wrong, see if you agree!!!