Why the Future Belongs to ‘Challenge-Driven Leaders’

The late Sergio Marchionne ran Fiat Chrysler with an eccentric, unorthodox style and a passion for complex problems. New research suggests he was ahead of his time.

The primary purpose of Fiat Chrysler’s investor conference on June 1 was to roll out the auto maker’s latest five-year plan. First, however, Chief Executive Sergio Marchionne took the dais. He had some incredible news to share.

The big reveal was this: At long last, the company’s ledgers contained slightly more cash than debt. Audience members were given small, candy-filled tins that said: “Net Cash: How Sweet It Is.”

On...