Elon Musk’s hyperfocus on the bottom line has made him influential in Washington and Silicon Valley. How does that compare with the last famous cost-cutter, Jack Welch?

Pivot or Die: How Leaders Thrive When Everything Changes By Gary Shapiro William Morrow 272 pages We may earn a commission when you buy products through the links on our site.

Jack Welch, G.E. Chief Who Became a Business Superstar, Dies at 84 Mr. Welch was named “manager of the century” after General Electric’s revenue jumped nearly fivefold during his tenure.

“She’s walking me through it,” he says, adding that Welch has given him “a lot of tips.” When asked about the specifics of the conversation, Antonoff said that “it’s private.” ...