One of the meanings of lean is austere, so are we going to talk about austere marketing? in a way, yes. We tell you what lean marketing is since it is the one that best takes advantage of all marketing resources and actions in the most efficient way possible to exploit a product or service at the lowest cost. https://www.techreviewscorner.com/what-is-lean-marketing-and-how-to-apply-it-to-your-company/