Tesla Inc TSLA CEO Elon Musk will likely shake things up at Twitter Inc TWTR as a director, according to a former board member of the electric vehicle firm, Bloomberg News reported on Wednesday. What Happened: Steve Westly, a Tesla bull and founder of The Westly Group venture fund, said he believes Musk's interactions with Twitter CEO Parag Agrawal are not going to be boring or quiet. "I think he is going to push all of them…he's going to shake things up," Westly told Bloomberg in a video interview.