Inside the Shakeup at Airbnb: The Startup Loses a CFO, Gains a COO

In an executive shakeup, Airbnb Thursday said that its CFO, Laurence "L.T." Tosi will be leaving the company and that CEO Brian Chesky's longtime deputy, chief business affairs and legal officer Belinda Johnson, would be elevated to the new role of COO. The company also said it is not going public in 2018.

The Tosi news was sudden and unexpected, despite recent reports of tensions between him and Chesky; the news about Johnson is not likely to surprise anyone familiar with her prominent role and reputation within the company.

Tosi joined Airbnb in 2015 from Blackstone, where he had been CFO since 2008. With Blackstone the largest private real estate investor in the world, and having just come off its buyout and subsequent IPO of Hilton, Tosi had unique real estate and hospitality industry experience and was expected to lead the company to its IPO. He also had a top flight Wall Street reputation: In 2011, he had reportedly been approached by Steve Jobs for the CFO role at but turned it down, according to Bloomberg; he was at one point named as a possible successor to Stephen Schwarzman.

But tensions between Tosi and Chesky had recently escalated, due in part to Tosi's wanting more responsibilities. According to an in-depth report from The Information, he was seeking to become either COO or president of the company's core homes division. The report also said the two clashed over some of Chesky's bold ideas--to expand into flights, for one, and other new initiatives that required a longer-term path to profitability. A source familiar with the company said the two had a "difference in philosophy" over how to manage Airbnb's growth.

For his part, Tosi said in a statement that "The two and half years I've spent at Airbnb have been some of the most thrilling of my career" and that "While the time is right for me to build my own business, I will miss working with the top tier teams we have assembled and am confident that they will continue to create value for Airbnb and our community."

Chesky, in a rare specific statement on the timing of the company's IPO plans, said in the announcement that it would not take the company public this year. "I know people will ask what these changes mean for a potential IPO," he said. "Let me address this directly. We are not going public in 2018." Chesky has always insisted that the company would go public on its own timetable and not for a while; in early 2017, he told Fortune he saw the process of getting ready for an IPO to be a two-year project and that at the time they were "halfway." But once ready, he stressed, the company would be patient and deliberate about picking its moment. Last week, he articulated in a blog post his vision to make Airbnb a "21st Century Company," one with an "infinite time horizon."