Corus Entertainment Inc.\u2019s chief operating officer, Barbara Williams, will retire at the end of this month. The company said in a press release Wednesday that it won\u2019t be appointing anyone to replace her in the role, since Williams has \u201cled and developed a strong and highly experienced leadership team, all of whom are now well positioned to lead the business into the future.\u201d The company, therefore, won\u2019t have a COO. Williams moved over to Corus when the company acquired Shaw Communications Inc.\u2019s media division two years ago. She spent six years at Shaw Media, which she joined in 2010 following Shaw\u2019s acquisition of CanWest. \u201cBarb\u2019s support and dedication has been invaluable since our transformational acquisition of Shaw Media, as we\u2019ve successfully integrated the two companies,\u201d Corus president and CEO Doug Murphy said in the release.