To me, lean is a state of mind that a founder and his/her team needs to have across all aspects of the business. The specific product and engineering approaches that are at the core of the lean startup movement are paramount for sure. But if you can apply lean to hiring, sales, marketing, customer service, finance, and everything else, you will be rewarded with a fast, nimble company. That’s a winning model, especially when things are moving fast in many dimensions as they are right now.
