Thomas Kuhn wrote the book on Paradigms and Paradigm Shifts. Few people know that shortly after it, he wrote Essential Tension, in which he pointed out that science moves forward because there are people who are unhappy with scientific traditions, but are unhappy at making a clean break with them. They stay within the fold and push boundaries, rather than make a clean break.
New research from Sloan reiterates that disruption is not the only way to innovate. Non disruptive innovation, although not fashionable, is just as important.