Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

Uber Technologies Inc. said a prominent retail executive it hired as president just six months ago is leaving, the most senior in a string of executive departures as the ride-hailing giant reels from an escalating series of controversies. 
  
 The resignation of Jeff Jones, who held the title president of ride-sharing and oversaw marketing and customer support globally, was confirmed to employees late Sunday by Chief Executive Travis Kalanick. It comes after Mr. Kalanick said earlier this month that Uber is seeking a chief operating... ||||| SAN FRANCISCO (Reuters) - Ride services company Uber Technologies Inc has been thrust deeper into turmoil with the departure of company president Jeff Jones, a marketing expert hired to help soften its often abrasive image. 
  
 Jones quit less than seven months after joining the San Francisco company, an Uber spokesman said on Sunday. 
  
 In a statement to Reuters, Jones said he could not continue as president of a business with which he was incompatible. 
  
 “I joined Uber because of its mission, and the challenge to build global capabilities that would help the company mature and thrive long term,” Jones said. 
  
 “It is now clear, however, that the beliefs and approach to leadership that have guided my career are inconsistent with what I saw and experienced at Uber, and I can no longer continue as president of the ride sharing business,” he added. Jones wished the “thousands of amazing people at the company” well. 
  
 Jones’ role was put into question after Uber earlier this month launched a search for a chief operating officer to help run the company alongside Chief Executive Travis Kalanick. 
  
 Jones had been performing some of those COO responsibilities. He joined Uber from Target Corp (TGT.N), where he was chief marketing officer and is credited with modernizing the retailer’s brand. 
  
 “We want to thank Jeff for his six months at the company and wish him all the best,” an Uber spokesman said in an emailed statement. 
  
 Uber’s vice president of maps and business platform, Brian McClendon, said separately he plans to leave the company at the end of the month to explore politics. 
  
 “I’ll be staying on as an adviser,” McClendon said in a statement to Reuters. “This fall’s election and the current fiscal crisis in Kansas is driving me to more fully participate in our democracy.” 
  
 Jones and McClendon are the latest in a string of high-level executives to leave the company. 
  
 Last month, engineering executive Amit Singhal was asked to resign due to a sexual harassment allegation stemming from his previous job at Alphabet Inc’s (GOOGL.O) Google. Earlier this month, Ed Baker, Uber’s vice president of product and growth, and Charlie Miller, Uber’s famed security researcher, departed. 
  
 Technology news site Recode first reported Jones’ departure on Sunday. 
  
 Uber, while it has long had a reputation as an aggressive and unapologetic startup, has been battered with multiple controversies over the last several weeks that have put Kalanick’s leadership capabilities and the company’s future into question. 
  
 A former Uber employee last month published a blog post describing a workplace where sexual harassment was common and went unpunished. The blog post prompted an internal investigation that is being led by former U.S. Attorney General Eric Holder. 
  
 Then, Bloomberg released a video that showed Kalanick berating an Uber driver who had complained about cuts to rates paid to drivers, resulting in Kalanick making a public apology. 
  
 And earlier this month Uber confirmed it had used a secret technology program dubbed “Greyball,” which effectively changes the app view for specific riders, to evade authorities in cities where the service has been banned. Uber has since prohibited the use of Greyball to target local regulators. 
  
 A man exits the Uber offices in Queens, New York, U.S., February 2, 2017. REUTERS/Brendan McDermid 
  
 Uber is also facing a lawsuit from Alphabet Inc’s self-driving car division that accuses it of stealing designs for autonomous car technology known as Lidar. Uber has said the claims are false. 
  
 Jones joined Uber in August and was widely expected to be Kalanick’s No. 2. Jones was tasked with overseeing the bulk of Uber’s global operations, including leading the ride-hailing program, running local Uber services in every city, marketing and customer service, and working with drivers. 
  
 The Independent Drivers Guild, an organization that advocates for Uber drivers, on Sunday was critical that Jones “has left the company without making a single improvement to help drivers struggling to make a living,” said Ryan Price, executive director of the guild. |||||

More turmoil at Uber: Jeff Jones, the president the company hired from Target less than a year ago, has become the latest top exec to depart, the Wall Street Journal reports. Jones, a marketing expert who joined the company after Uber CEO Travis Kalanick said the company "needed a real infusion of talent on that front," had been tasked with improving Uber's image worldwide. Insiders tell Recode that Jones decided that dealing with the company's multiple recent scandals was not what he signed up for. In a statement Jones confirmed the departure and said "the beliefs and approach to leadership that have guided my career are inconsistent with what I saw and experienced at Uber." Jones' future at Uber was put into question earlier this month when Kalanick announced that the company was seeking a new chief operating officer, a role which would have included some of Jones' responsibilities, reports Reuters. "We want to thank Jeff for his six months at the company and wish him all the best," Uber said in a statement. Last month, a top engineering exec left Uber over sexual harassment allegations from his time at Google. Uber has been dealing with a sexual harassment scandal of its own, along with a lawsuit from Google's self-driving car unit and the exposure of its "Greyball" tool for avoiding law enforcement in cities where it was banned. (Uber might be coming to upstate New York.)