David Whiston, an auto analyst at Morningstar, said in an email to CNN Business that the only executive left who might make sense as a Musk successor is Andrew "Drew" Baglino, Tesla's senior vice president of powertrain and energy engineering, who has been with the company since 2006.
"Wall Street doesn't have a clear #2 unless it's Drew Baglino," Whiston wrote, adding that he did not think the company would tap chief financial officer Zach Kirkhorn as a successor.