Our long-serving Corrie producer Kate Oates has handed in her notice – amid a stream of behind-the-scenes turmoil at the soap.AdvertisementOates’ departure is believed to be a major blow to ITV bosses, with the soap having enjoyed a revival in recent years under her leadership, and with the writers given unprecedented freedom by the executive producer.Our story today cites an anonymous insider who says: “There was a lot of tension behind the scenes, and the job of sacking Kate was left to the same person who handed the job to her [ass