Few plans survive their first contact with reality. Don't assume the model you start with is the one that will succeed. You have to plan carefully, but constantly check your plan against reality and be ready to modify it ruthlessly if it isn't working. Make execution the acid test . Careful, intelligent planning is important, but for most entrepreneurs that's the easy part.
Execution is the hurdle that separates successful from unsuccessful companies.
We had a plan but for a variety of reasons we couldn't execute it effectively. Coordinate, coordinate, coordinate . To make your startup work you've got to work well and closely with your partners. We had a hard time because we were geographically dispersed from Seattle to New York. A few of us had never met and knew each other only through Harry.