Kurt Lewin from a leader. Members are given choices and collectively decide the division of labor. Praise and criticism in such an environment are objective, fact minded and given by a group member without necessarily having participated extensively in the actual work. Laissez-faire environments give freedom to the group for policy determination without any participation from the leader. The leader remains uninvolved in work decisions unless asked, does not participate in the division of labor, and very infrequently gives praise. An early model of change developed by Lewin described change as a three-stage process. The first stage he called "unfreezing". It involved
John Hersey should honor its longserving alumnus. The result was the annual John Hersey Lecture, the first of which was delivered March 22, 1993, by historian and Yale graduate David McCullough, who noted Hersey's contributions to Yale but reserved his strongest praise for the former magazine writer's prose. Hersey had "portrayed our time", McCullough observed, "with a breadth and artistry matched by very few. He has given us the century in a great shelf of brilliant work, and we are all his beneficiaries." The John Hersey Prize at Yale was endowed during 1985 by students of the author and former Pierson College