To better understand how small businesses can accelerate innovation, ADP spoke to author and expert Stephen M. Shapiro, whose latest book, “Best Practices Are Stupid: 40 Ways to Out-Innovate the Competition,” became a No. 1 best-seller in the business innovation category. Although Shapiro works with major companies, including Microsoft, General Electric, and Procter & Gamble, he believes cultivating a culture of innovation is essential for small businesses as well. APD: Why is creating a culture…