Throughout my experiences as both a consultant and an entrepreneur, the critical role of organizational culture  in driving performance has become increasingly clear. As Mike Tyson famously said: "Everyone has a plan: until they get punched in the face".  Strategy is essential ("plan"), but culture and day-to-day execution determine how companies respond to the inevitable "punches". With this in mind, here are 4 key lessons large corporations can learn from startups  to stren