JENNY ROGERS and AAP. CEO John Redmond to leave in May after 15 months in job; Shares plunge 8 pct to record low of A$ (Recasts with quotes, Genting interest). Echo Entertainment boss John Redmond is leaving after little more than a year in the job, but says the casino operator is on the way to. John was President and Chief Executive Officer of MGM Grand Resorts, LLC, a collection of resort-casino, residential living and retail developments, and a. . ECHO Entertainment Group chief executive John Redmond will leave the casino operator after just a year in the job. Redmond is a businessperson who has been the head of 7 different companies. Echo Entertainment Chief Executive John Redmond has resigned after a little more than a year on the job in the wake of second-half results. John Redmond 's bluff refusal to detail the painful personal circumstance that requires his retirement from Echo Entertainment would. Redmond is President & Director at Allegiant Air LLC. Currently, Mr. Echo Entertainment Group chief executive officer John Redmond announced his retirement from the embattled casino operator as it reported. John T.