WASHINGTON — Weary Republican leaders are accepting Donald Trump’s latest staff shake-up, hopeful that a new leadership team can reverse the New York businessman’s struggles even as some worry it’s too little too late.

The Republican National Committee has already conceded it may divert resources away from the presidential contest favor of vulnerable Senate and House candidates if Trump’s standing does not improve in the coming weeks. RNC chief strategist Sean Spicer called Trump’s staffing changes the “healthy growth of the campaign at a senior level at a key point.”

Spicer also urged caution as Trump’s new team contemplates whether the fiery populism and freewheeling style that won him the Republican nomination will give him a better shot at the White House than uniting his party and rallying moderate voters.

“I think people want him to be authentic,” Spicer said. “They appreciate he’s not a scripted politician, but there’s a recognition that words do matter.”

Trump on Wednesday announced a staff overhaul at his campaign’s highest levels, the second shake-up in the past two months. The Republican nominee tapped Stephen Bannon — a combative conservative media executive with no presidential campaign experience — to serve as CEO of his White House bid.