Six years ago, Josh Tyrangiel was set to transform the publishing business in the digital age. In September 2006, he became editor of Time.com and assistant managing editor at Time. He advanced the media giant’s Internet footprint, and then left to become editor of Bloomberg Businessweek after its December 2009 acquisition by Bloomberg L.P. Mr. Tyrangiel has earned respect for what he accomplished at Time.com, and deserves credit for getting out while the going was good. He hit the ground running—scoring a sit-down with President Obama just a month into the job—and reinvented Bloomberg Businessweek as one of the country’s best general-interest magazines. Mr. Tyrangiel has made the magazine’s design more interesting; he’s also taken some starch out of the Bloomberg News reporting style. Mr. Tyrangiel’s mentors and admirers include publishing legends Walter Isaacson and Norman Pearlstine. After Sandy, a Bloomberg Businessweek cover screamed, “IT’S GLOBAL WARMING, STUPID.” Mr. Tyrangiel tweeted, “Our cover story this week may generate controversy. But only among the stupid.” There’s no reason not to think Josh Tyrangiel isn’t headed for even bigger things.