Canadian Broadcast Sales president Patrick Grierson to step down

TORONTO - Canadian Broadcast Sales founder and president Patrick Grierson will retire from the national radio sales organization on May 31, 2017. Details on his successor will be announced in the coming months.Grierson has been at the helm of CBS for the past 23 years after founding the organization in 1993. Following his retirement, he will remain part of the CBS family in an advisory role until May 2018.Jointly owned by Rogers Broadcasting and Corus Entertainment, CBS is Canada's largest radio representation company, representing 43 broadcasters and more than 400 radio stations (including repeaters) in 221 Canadian markets. "A true pioneer,...