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Tesla Inc. (TSLA - Get Report) shares were down 0.7% in trading Wednesday after the electric carmaker announced it was replacing its general counsel Dane Butswinkas just two months after he joined the company.

Butswinkas will be replaced by company vice president of legal, Jonathan Chang, who has been with Tesla for nearly eight years. 

The departure of Butswinkas is yet another in a long line of top executives who have left Tesla over the past two years as the company ramps up the production of its mass market Model 3 sedan.

More than 50 senior executives have left the company in the past two years, according to The Wall Street Journal, including Chief Financial Officer Deepak Ahuja, who retired in January. In September, accounting chief Dave Morton left the company after only a few weeks. 

It hasn't been all bad news for Tesla this week. CEO Elon Musk announced Tuesday that the company's vehicles "will be feature-complete for full self-driving this year." Musk said in an interview that the vehicles will be able to "find you in a parking lot, pick you up, and take you all the way to your destination without an intervention."

Musk did later couch his optimism for a self-driving future later in the interview, saying that the vehicles won't have a car that works with "100% certainty" and without observation until 2020.