TORONTO - Kids’ CBC has hired Marie McCann and Drew Mullin as executives in charge of production for children’s content, the public broadcaster said Monday.Mullin, an international award-winning writer, director, producer and composer, has been creating children’s media, performing arts programs and commercials for two decades. He has co-developed and directed more than a dozen multi-platform series for TVO and helped to shape its live programming block. McCann returns to CBC, after holding the same role from 2007 to 2012. McCann previously headed-up the preschool team at TVO, where she led the creation of programs including Gisele's Big Backyard and Kids' Canada. She is also the author of...