The movement around the Lean Startup methodology began with startup founders only.
Leancamp talks in London were always about practical lessons learned, shared to help other founders. Andy Young (then founder of a startup called GroupSpaces, now Growth Marketing at Facebook) explained how he learned SQL, a database query language, so that he could build his own analytics dashboard to manage his business. Andreas Klinger (then founder of a fashion startup, now CTO of Product Hunt) gathered everything he could find on "Startup Metrics" and invested a few days to turn it into a slide presentation he shared for free - for the benefit of all founders.
This is a companion discussion topic for the original entry at https://peerlearning.is/waves/