Ndebele, who was head coach and Madinda Ndlovu’s right hand man, left the country for US to pursue studies and will be away for the next four months. He resigned after the club refused to grant him study leave.
Club vice chairman Elkanah Dube said they would soon appoint a new team manager.
"At Highlanders we do not have a culture of standing on the path of anyone who wants to move. He has left for America to study sports administration and coaching and we wish him well. But the truth is that we parted ways amicablye, we did not fight," said Dube.
Ndebele made shock waves when he was named manager of the club, taking over from Zenzo Moyo who was acting manager after stepping into the shoes of Emett Ndlovu, who was releaved of his duties because of illness.
Prior to being team manager, Ndebele was a team manager for Division two side Sparrows, and was a former Highlanders volleyball coach and officer orderly.