Again in example sentence
Because the Zetas organization was founded in treason, they lost some of the linkages to the production and distribution in the most profitable markets like cocaine, but what they did have, and this is again based on their military origin, was a perfectly structured chain of command with a very clear hierarchy and a very clear promotion path that allowed them to supervise and operate across many, many markets very effectively, which is the essence of what a chain of command seeks to do.