Pop star Lady Gaga may be a sensation, but her manager Troy Carter still believes she has a long way to go. “As big as she has become, globally, she is still a developing act. So we have to treat her as a developing act. She has to spend time in a market. We look at it as an investment,” Carter said at the Music Matters conference in Singapore, reports femalefirst.co.uk. “I don’t feel as if she’s made it yet in the music industry. You ask me this in 25 years and it might be a different answer. We’ve got a long way to go. She is on the edge as well,” he added.