After the the end of the most punishing year of their careers and just starting an uncertain new year, business leaders are united in one belief: the volatility of the past 12 months is far from over.

“I spend a lot of my time looking at all those spinning plates out there,” says Sean Menke, chief executive of Sabre, the flight booking and hotel reservations technology company, whose prospects are tied to the unpredictable fate of the travel industry. “You’re trying to do a forward calculation of what airline capacity is going to be like in the next two years. You think about the impact on travel agencies and the hospitality scene. If you’re dealing with a slow recovery, what are the other options to grow your business?”