by Michaela J. Kerrissey and Amy C. Edmondson for the Harvard Business Review In May, the World Health Organization announced the end of the Covid-19 global emergency. Finally. But for many leaders, the announcement lifted little of the burden they carry. While the emergency is over, the crisis is not. We have shifted from the sudden crisis of the pandemic’s arrival to what we call a sustained crisis — a period of ongoing intense difficulty and uncertainty. The trouble with a sustained crisis is that, unlike a sudden crisis, it arrives with ambiguous signals and no clear start date. As a result, leaders, including those who are great…