By Marty Zwilling of Startup Professionals MusingsLack of confidence in your self, your product, and your startup is a
surefire recipe for disaster. At the other extreme, too much confidence
or arrogance can kill you just as fast. It’s always painful when a
startup fails, but as a mentor to founders, I would hope that you can
learn from these failings and not stumble on the same issues. I’ve
written about these before, but since I see them so often, I thought it
might be worth reiterating:

  1. “Business plans are for dummies.”
    Some startups think business plans are only for investors. In reality,
    you should do a business plan primarily for yourself, as it forces you
    to think through all the elements. If it’s not written down, you can’t
    measure it, and thus you can’t manage it. Also written plans are much
    more effective communication to your employees, …