TORONTO – Chris Robbins, the chief customer officer at Wind Mobile Canada, is out.A memo to Wind employees yesterday outlined the changes in the executive ranks, just about three months since launch.“As we move from launch to operational mode we are faced with a different set of challenges. The operations need to be stabilized, subscribers need to be acquired and revenues need to accelerate,” said a memo sent to employees by president Ken Campbell.“Over the course of the last two weeks I have had extensive discussions with shareholders and the Board. As a result of these discussions I have agreed...