“I would have never imagined I’d be in this business,” says Tom Patterson in this Business Insider article. His business is selling undershirts that don’t ride up. He became an entrepreneur to address a need that the market didn’t seem to be fulfilling. Whether you are in the middle of your career, or just starting out you yourself may very well be uttering this same line. To be successful you need to adapt to opportunities rather than sticking to notions of what you always thought you’d be.