Rob Cicchelli has accepted a secondment with the Ministry of Education as Student Achievement Officer for the London West Region.
Chris Kehoe, who is currently the Principal of St. Philip Catholic School in Petrolia, will move to St. Patrick's on September 1.
Joanne McCreery will take over at St. Philip, moving from Sacred Heart School in Port Lambton.
St. Clair Catholic District High School Board Director of Education Deb Crawford says Mr. Cicchelli will be missed.
"We are of course pleased at this opportunity for new experiences and professional growth for Rob," says Crawford. "We are, however, aware of the loss to our system of his great breadth of knowledge, wisdom and experience. He has been a wise counsellor, strong mentor, and trusted friend and he will be missed."