Pyeongchang, South Korea

It would have been only natural for the Norwegian ski-jumping team to feel some pressure before Pyeongchang. As the world’s best, they were expected to win gold in a sport their country invented. But they were struggling before the Games, and it didn’t exactly soothe any nerves when a former Olympic ski jumper eviscerated them in a tabloid interview for effectively being too relaxed.

“You’ve...