In a move that is being called the start of a “wave of changes” for the Trump White House, Communications Director Mike Dubke has resigned, Axios reports. Dubke was on the job for just three months before he handed in his resignation May 18.

“He offered to stay through the overseas trip, and Trump accepted. He has been trying to help restructure the press and communications operation, and is parting on good terms, a senior administration official said,” the story reports.

The report adds: “Insiders say Dubke came in with few patrons, and never gelled with the originals. His departure is a reminder of how hard it is for newcomers to thrive in Trumpland.”

The report notes that Dubke continues to show up for work, with his last day not yet set. The job is not expected to be filled immediately.

“Trump is considering much broader changes, including the possibility of bringing in David Urban, a prominent GOP lobbyist who was a senior adviser on the campaign, as chief of staff,” the report adds.