Former finance manager Richard Simmonds takes on the role of general manager of corporate services.
Jerry Crump has moved out of his role as manager of Copthorne Resort Solway Park and is now the general manager of operations and marketing.
Former community support manager Craig Thomson is now the general manager of housing and infrastructure.
Cindy Grant, who was previously operations manager, has been appointed general manager of gaming and compliance.
"With the appointment of Jerry Crump to his new role, the hotel manager position became available and we are delighted to have appointed Michelle Kirkpatrick as the new manager of Copthorne Resort Solway Park," Mr Pollard said.
Mrs Kirkpatrick was previously the hotel's business development manager.
"Of paramount importance is our ability to enhance community well-being through the distribution of surplus profits - this is our core purpose," Mr Pollard said. "Any changes we make have this thinking at the top of our minds.
"I am excited by the changes and look forward to working with all of the senior team as we further develop Trust House as an organisation which adds enormous value to our region."