We need a different approach when working with a startup or large enterprise. To quote Steve Blank: "In the last few years we’ve recognized that a startup is not a smaller version of a large company. We’re now learning that companies are not larger versions of startups.".
Large companies have finite life cycles and prefer sustaining innovation. Most grow by offering new products that are variants of their core products. Their size and culture make disruptive innovation extremely difficult to execute.
One good reason, why we use a different approach when working with a startup or enterprise