Turn-Key Marketing Programs remove the most input from the business while creating the most autonomy for the agency.
This involves routine content capture, social media posting, emails newsletters and managing paid ad programs within a certain budget. We still need an internal point of contact to keep us up to date with events, news, etc. but this removes as much labor from the business as possible.
Supplemental Marketing Programs involve outsourcing a specific piece of the puzzle. Ex. You need professional level media created regularly, but prefer to stay in control of how it is distributed.
You may want to retain all media and image control, but simply outsource components like newsletters or paig advertising campaigns.