Agencies often get stuck in a service loop where retainers cap margins at 30...

https://www.apu-bookmarks.win/treating-your-agency-like-a-lab-means-building-your-own-tools-instead-of-just

Agencies often get stuck in a service loop where retainers cap margins at 30 percent. Start treating your team like a lab to build software instead. Once you turn your internal workflows into a tool, those margins can jump to 70 percent plus.