Madonna's longtime manager, Guy Oseary, says the singer's work ethic inspired the way he approached his own career. Jeff Vespa/Getty Images for TWC Guy Oseary says Madonna's relentless work ethic helped shape the way he built his own career. "There are no walls around her thoughts. There's no 'Oh, I can't do that,'" the singer's longtime manager said. Oseary highlights Madonna's ability to identify talent and her forward-thinking mindset as key career lessons. Guy Oseary has spent more than th