Answer:
paradigm shift
Explanation:
Based on the information provided within the question it can be said that this is an example of a paradigm shift. This term refers to a fundamental change within an a company's or entity's set of discipline or norms of it's basic concepts. Which in this scenario adding same day home delivery drastically changes the basic concept of an in person organic food grocery store as people are able to order online and never have to set foot into the store. Which may even lead the store to close their brick and mortar store and function strictly online.