The head of human resources at contract caterer Gardner Merchant has quit following a shake-up of the HR department.
John Stacey resigned this month because of a decision to split HR among the firm's business units.
Two divisional HR directors have taken over Stacey's role until it is decided whether to fill the post. A spokeswoman for Gardner Merchant said much of Stacey's remit had disappeared as a result of the restructuring.
"Following the changes John Stacey decided to leave," she said.
"He felt his strengths lay elsewhere and he decided he wanted to pursue other options."
The spokeswoman added that no HR jobs would be axed as a result of the restructuring. It is not yet known whether staff will have to relocate.
Gardner Merchant, which employs about 55,000 staff in the UK, has lost at least 10 senior managers in the past two and a half years, including its chairman and managing director in the past three months.
It plans to expand its services and wants to bring HR closer to individual business units in order to handle the changes.
Full details of the restructuring programme are expected in the next few weeks.