I totally missed this news:

Tesla shareholder wants to remove Elon Musk from chairman position

Ahead of Tesla’s annual shareholder meeting in June, stockholder Jing Zhao has submitted a proposal to replace the board’s chairman, Elon Musk, with an independent director. Musk, the chief executive officer at Tesla, has been chairman of the board since 2004.

https://techcrunch.com/2018/04/27/tesla-shareholder-wants-to-remove-elon-musk-from-chairman-position/

http://ir.tesla.com/secfiling.cfm?filingID=1564590-18-9339&CIK=1318605