The bigger the change, the deeper and longer the dive into chaos. In my experience, if done as a big bang across the whole firm, the time for collective learning anxiety, the time for unlearning, the time for behaviors and processes to become fit for purpose, the time for morale to fall through depression and return to the place where it started before the change process began—and before it rises through the stage of acceptance—is several years depending on the size and culture of the organization. This assumes that the organization does climb out of the hole.
