The Edmonton principal of the school at the centre of the no-zero debate is leaving his position effective immediately.

Staff at Ross Sheppard High School were told this morning Ron Bradley had accepted a different position within the Edmonton Public School board.

In a letter he posted on the school's website, Bradley writes he applied for and won a job as supervisor of leadership development — a branch of the board that trains new principals.

Bradley was principal at the school for five years.

Bradley's support of a policy that bans teachers from awarding zeros for missed assignments or tests was thrust into the spotlight over the past year as teachers at the school spoke out against it.

At least seven teachers, some recently retired and some who still work there, have opposed the policy.

Perhaps the most notorious of those teachers is Lynden Dorval, who was recently fired, in part, for not following the no-zero rule.

A new principal will start at the school Tuesday.