New York (CNN Business) Two of Uber's top executives are leaving the company one month after its lackluster Wall Street debut.

Uber UBER confirmed Friday that its chief operating officer, Barney Harford, and chief marketing officer, Rebecca Messina, will depart the company.

In a copy of the email to staff seen by CNN Business, Uber CEO Dara Khosrowshahi said Harford's departure comes as a result of the company's progress over the past two years. "Uber is in a far better spot both internally and externally, I now have the ability to be even more involved in the day-to-day operations of our businesses," he wrote. "Given this, Barney and I have agreed that the COO role no longer makes sense, and he's decided to leave Uber."

Harford will remain at the company until July 1.

He was brought in by Khosrowshahi in December 2017 to be his right hand man. Khosrowshahi was previously the head of Expedia where Harford worked before becoming CEO of Orbitz, where they then became rivals.

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