The Pentagon under Secretary Pete Hegseth is seeing yet another key official stepping down.

According to Politico, "The influential head of the Defense Innovation Unit — the Pentagon’s in-house tech incubator — abruptly stepped down on Monday, removing the last high-profile Biden administration holdover at the Defense Department and severing a key link with Silicon Valley. Doug Beck, a former vice president at Apple, said Monday in a goodbye email that it would be his last day, according to two people familiar with the matter."

According to the report, Beck "did not provide any reason for his departure."

The loss of Beck, who has run the office since 2023 and was key to getting a lot of military-skeptical Silicon Valley investors into the fold and pushing for greater innovation and efficiency in the Pentagon, comes amid a broader housecleaning as other high-ranking people are either pushed out or leave.

"Beck’s departure comes just days after Defense Secretary Pete Hegseth removed three top military officials: Defense Intelligence Agency chief Gen. Jeffrey Kruse, Navy Reserve chief Vice Adm. Nancy Lacore and head of Naval Special Warfare Command Rear Adm. Milton Sands III," noted the report. Meanwhile, "Air Force chief of staff Gen. David Allvin on Tuesday also announced his surprise retirement, less than halfway into his four-year term in the service’s top military job."

Hegseth's tenure at the Pentagon, which followed a highly contentious confirmation process that detailed problem drinking and allegations of sexual assault, has been rocky.

The former Fox News host has pushed a number of culture wars, even reversing the decisions to take Confederate general names off military bases, all the while spending budget-busting numbers on a security detail of hundreds of people.