The White House has reviewed candidates to potentially replace Deputy Secretary of Defense Steve Feinberg, three people familiar with the discussions told Reuters, a sign that more leadership change could come for a Pentagon already facing unusually high staff turnover.

The effort, which was under way in June, has included conversations with senior US senators about whether the White House’s picks would have enough support to be confirmed, said two of the people, one of whom added that the review was still going on as of late August. Reuters could not determine when the administration of US President Donald Trump began considering candidates.

The three sources said no decision had been made to remove Feinberg from his post. They did not say why the White House was reviewing potential replacements and did not specify which candidates the White House was considering.

“These so-called anonymous ‘sources’ have no idea what they are talking about,” said White House spokeswoman Anna Kelly.

“President Trump appreciates the work of Secretary Hegseth, Deputy Secretary Feinberg, and the entire Department of War, whose record of success in Operation Epic Fury, Operation Absolute Resolve, and Operation Midnight Hammer speaks for itself,” she said, referring to US military operations in Iran and Venezuela.