Now that Disney/ABC Radio has appointed a new boss for news/talk WLS-AM (890), the fate of morning stars Don Wade and Roma finally may be resolved at last. But in taking so long to get down to business, ABC unwittingly allowed a door to open for the Wades at another Chicago station. Four months after Zemira Jones left as president and general manager for a top operations post at Radio One, ABC this week named John Gallagher, a 19-year ABC veteran, as his successor. Gallagher, who most recently was director of sales at WJR-AM in Detroit, also will head Radio...