According to Business Week's Bruce Nussbaum, "There is, in fact, a whole new generation of innovation gurus. They are not the superstars of the '90s, such as Clayton Christensen, who focused on what might be called macro-innovation - the impact of big, unexpected new technologies on companies. The new gurus focus more on micro-innovation - teaching companies how to connect with their customers' emotions, linking research and development labs to consumer needs, recalibrating employee incentives to emphasize creativity, constructing maps showing opportunities for innovation."