On Monday, Andrew McMahon, assistant to the superintendent, said he is leaving the school system to take a job with a Rockville, Md., firm.
Last week, Jamie Cannon, supervisor of Human Resources for Washington County schools, went to work for the Frederick County Board of Education, where she will become executive director of legal services, officials said.
School officials said each left for different reasons.
Barkdoll, who was interim superintendent for five months while the school board looked for a replacement for former superintendent Wayne Gersen, wanted a position that would give her a "wider range of experiences. It's not a surprise," said board Vice President B. Marie Byers.
Barkdoll could not be reached for comment.
McMahon, who was in the U.S. military before joining the school system, was hired by Gersen to act as a "chief of staff." McMahon coordinated central office operations and oversaw departments such as transportation, food service and finance.
Some board members did not agree that the position was needed, said McMahon, who had held the post since December 1996.
"I saw the handwriting on the wall," said McMahon, who is taking a job with Aspen Systems, which provides warehouse space and high-tech assistance to companies.
Cannon had obtained a law degree, and wanted to be a staff attorney for a school system, said school board member Doris J. Nipps. The local school system does not have that position, said Nipps.
School officials said that by making the moves, all three probably will make up to $2,000 a year more than they would have in their Washington County jobs.
"The wages are too low. We need to get them up," said school board President Robert L. Kline.
Schools Superintendent Herman G. Bartlett Jr. said the departure of the three top-level administrators is one of the reasons he has decided to look for an outside firm to help him redesign the system's organizational structure.