Uber's operations and marketing managers are both leaving the company.

Uber CEO Dara Khosrowshahi announced that Chief Operating Officer Barney Harford and Rebecca Messina, Marketing Director, both leave the company. In an email to employees on Friday, Khosrowshahi said, "Over the years, I've learned that at every critical step, it's important to step back and think about how best to organize for to come up. Given that we had the IPO a month ago, that's one of those circumstances. "

The executives are withdrawing almost a month after the public release of the largest IPO in the technology sector for years. The IPO was perceived by many as a disappointment, but Uber has been trading above its stock price since this week.

Harford was appointed COO in December 2017. Uber was criticized for this choice, when it was originally thought that Uber's board was looking for a female executive to take on this role. Harford was reportedly the subject of numerous employee complaints for insane racist remarks that he allegedly made at a meeting. according to The New York TimesUber employees claimed that he had made similar comments about women and minorities at other times during his tenure with the company.

But Khosrowshahi sends Harford with a note of appreciation in the staff's email. "Barney is a talented businessman, and I can not thank Barney too much for all his contributions that allowed us to get to the IPO and reach it," he wrote. "On a personal level, I appreciated his strategic mind, his analytical skills, his unwavering passion and his efforts for our mission." The reason for Harford's resignation is an apparent consensus that "the role of COO no longer makes sense" in Uber. Relations between Harford and Khosrowshahi go back a decade, as the two leaders competed as CEOs of Orbitz and Expedia, respectively.

"I now have the ability to be even more involved in the daily activities of our larger companies, the main platform of Rides and Eats, and I have decided that they should report directly to me, "wrote Khosrowshahi. "It will allow me to be more active and help our leaders solve their problems in real time, while ensuring that our vision of the platform becomes a reality."

Andrew Macdonald, Uber senior executive hired by Travis Kalanick, will now lead Uber's global attractions activities and report directly to Khosrowshahi.

Rebecca Messina, longtime executive in the beverage industry before joining Uber, is leaving the company less than a year after being hired as director of marketing, as a result of the consolidation by Uber of his policy, communication and marketing teams within a division led by Jill Hazelbaker. "Since joining Uber almost four years ago, Jill has been instrumental in solving some of the toughest challenges as a business. She is an excellent team builder and is always committed to doing her best for Uber. "