Faced with an impossible challenge? Don’t reinvent the wheel. Find someone who’s already solved the problem – and help those inventors keep inventing. Megan Smith calls that technique “scout and scale.” She used it as the United States' CTO. She did it as an exec at Google. She did it as CEO of PlanetOut. And she continues today with the company she co-founded, shift7. Cameo appearance: Monique Sternin (co-founder of the Positive Deviance Approach & Initiative).