caretaker manager
In association footballing terms, a caretaker manager is somebody who takes temporary charge of the management of a football club, usually when the regular manager is dismissed, or leaves for a different club
(from wikipedia)
بر اساس تعریف فوق معادل صحیح عبارت caretaker manager سرمربی موقت (باشگاه فوتبال) است.