So true. To all of the people who think you will learn something at a big company, how many of you have founded a startup? Did the processes that you learned at a big company help you run that startup?
One of the reasons I decided not to pursue my idea for a Dropbox-like system in 2002 was because I thought I would actually learn something if I took a job at a profitable web commerce company. (See http://erickennedy.org/great-idea-before-Dropbox the full story.)
The only thing I learned at Expedia.com was how hard it is for publicly-traded companies to innovate if it has any threat on their existing business model. They were unwilling to allow their customers to write hotel reviews because they feared it would anger hotel suppliers. They paid advertising to TripAdvisor as it grew that business and only later acquired it. It was pointless innovate within Expedia -- even the CEO (Rich Barton) couldn't get the teams to add reviews.
Worse, I bought a condo and a car with debt at Expedia and no longer had the flexiblity to bootstrap a startup. Don't make that mistake. It's fine if you're working at a big company to build up a cushion to start your business, but don't believe that their processes are right for a startup.