The resignations come from campaign manager Rob Johnson, strategists Sam Dawson and Dave Carney, spokesman Rick Tyler, and consultants Katon Dawson in South Carolina and Craig Schoenfeld in Iowa, all of whom quit to protest what two officials called their "different vision" for the campaign, according to Politico.
Carney and Johnson were previously two of Perry's top aides.
The news comes hours after the Washington Post and the Wall Street Journal both ran stories about growing interest in Perry running for president. The Washington Post quoted Perry someone close to Perry as saying, "I don't want to do this without Carney."
Perry and Gingrich have long been political allies. Gingrich wrote the foreword to Perry's last book. In November, the pair appeared together at a book signing in southwest Fort Worth.
UPDATE: This afternoon, Gingrich posted the following message on his Facebook page:
"I am committed to running the substantive, solutions-oriented campaign I set out to run earlier this spring. The campaign begins anew Sunday in Los Angeles."
UPDATE: Perry's spokesman, Mark Miner, said the turnover in Gingrich's campaign isn't related to Perry.
"Nothing’s changed," Miner said. "He remains focused on the legislative session."