Defense Secretary Chuck Hagel “is stepping down amid criticism of the president’s national security team on a series of global issues, including the threat posed by the militant group known as ISIS,” NBC News reports.

“Senior defense officials confirmed to NBC News Monday that Hagel was forced to resign.”

The officials say the White House has lost confidence in Hagel to carry out his role at the Pentagon. According to one senior official, “He wasn’t up to the job.”