Uber was already in the hunt for a high-caliber executive to help revamp the company.
Now, though, that person will get to call themselves CEO.
The ride-hailing company's chief executive, Travis Kalanick, resigned the post on Tuesday after getting a letter from investors demanding his departure. At the time Kalanick received the letter, he was in Chicago to interview a candidate to be Uber's chief operating officer. Up until Kalanick's resignation, filling that position was the company's top priority.
Now, Uber's board is putting on hold the search for a partner for Kalanick, to start looking for a leader for the new Uber. (Kalanick, though, will have a role in finding his replacement.)
It won't be easy to find an exec willing to take on turning around the embattled company, but here's a list of some of the likely candidates for the job:
Thomas Staggs

Former position: Chief Operating Officer of Disney
Once the heir-apparent at the Mouse House, Staggs stepped down in April 2016 in a move that shocked the entertainment industry. Given his experience as a top executive at a large company and his operational and financial expertise — he also served as Disney's chief financial officer — it makes sense that Staggs has been one of the early names bandied about for Uber's CEO post.
Helena Foulkes

Current position: President of the pharmacy division and executive vice president, CVS Health
Foulkes was in the running for Uber's COO position but ultimately decided against it, according to one source familiar with her decision. With Kalanick out of the picture, though, Foulkes might be persuaded to change her mind.
Foulkes has spent 25 years at CVS, helping the company develop into the massive pharmacy chain it is today. In one of her previous roles at the pharmacy retailer, she oversaw some of its marketing efforts. That's an area where Uber needs help as it seeks to rebuild its relationships with both riders and drivers.
Adam Bain

Former position: COO of Twitter
Known as Twitter's "Mr. Nice Guy," Bain had been asking friends about Uber's COO job after the company started searching for someone to fill that position. A pal of Kalanick's, he could take the top role immediately, because he's been a free agent since leaving Twitter in November 2016.
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