Will 2013 be the year of the manufacturing renaissance? Plenty of groups are hoping so. NAM issued its "manufacturing renaissance" strategy over a year ago. Willy Shih and Gary Pisano of the Harvard Business School, as well as Craig Giffi at Deloitte, are leading advocates for policies that will encourage manufacturing innovation on our shores. And Boston Consulting Group has issued a series of reports pointing to a steady rise in new investment in American manufacturing over the next five years.