"Musk is CEO -- the buck stops with him. As a CEO in a competitive environment, he's the one who has to have the vision and lead the troops," David Meier, a senior investment analyst at The Motley Fool, told ABC News. "But there's a lot going on in the world that impacts Tesla's business."

Wall Street may be skeptical about Tesla’s upcoming quarters, but CEO Elon Musk made four surprising announcements that could be game-changers — if they prove true.

Nelson downgraded the company’s stock to a neutral rating in April. But even some of the Tesla bulls on Wall Street are saying that the time for Musk to take action is running out.