In an unexpected move, National Republican Congressional Committee Chairman Tom Reynolds (N.Y.) has decided to replace two top staffers at his committee, surprising GOP political operatives who follow its operations closely.

Donna Anderson, deputy executive director for the NRCC, and Joe Rachinsky, the NRCC’s finance director, both resigned on Monday, according to Republican sources.

Anderson’s departure, in particular, caught many Republicans off guard. GOP insiders said Reynolds and Sally Vastola, the NRCC’s executive director and a longtime Reynolds aide, informed Anderson of their decision to move in another direction early this week.

“Sally is making some changes,” said a top House Republican aide of the turnover at the campaign committee. “She wants her own people over there.”

Anderson had been with the NRCC for more than 18 years and had served in a variety of roles at the committee, including director of administration and treasurer.

NRCC officials declined to comment on the situation, saying that they do not issue public statements on personnel moves at the committee.

Rachinsky, who worked at the National Restaurant Association before joining the NRCC, may end up with a consulting contract from the committee, said a GOP source close to the issue.

There was no word at press time who would take over for Anderson and Rachinsky.