TROUBLED De La Salle College will begin the new school year under the leadership of an acting principal.
Vice-principal Marion O'Neill, who has been in charge of the west Belfast school since June, will continue as head.
Dr Martin Knox, principal of St Eugene's College in Roslea, has been seconded to De La Salle as assistant principal with curricular responsibility.
There will be an internal trawl for a temporary vice-principal post to fill Ms O'Neill's post.
The appointments were made following a meeting yesterday between the Council for Catholic Maintained Schools and staff.
CCMS said this meeting was to "provide De La Salle with stability, experience and expertise through the creation of a sustainable management team".
The school was left in turmoil over a breakdown in relations between some of the 70-strong staff and principal Claire White for several months.
Ms White has been absent from the school since the middle of April and no time scale has been given by CCMS for her return.
An independent report into issues at the school has been completed and sent to the education minister.
The investigation looked at staff welfare and work relationships, the role of senior leadership and management and the impact on teaching and learning and pupils' attainment.
