Electric carmaker Tesla is actively searching for new board members, following persistent criticism that its current board is too closely tied to CEO Elon Musk. The most recent call for a more independent board came in a letter this week signed by five large investors, including the California State Teachers Retirement System. “We are actively engaged in a search process for independent board members, which is something we committed to do several months ago, and expect to announce new additions fairly soon,” a Tesla spokesperson said. Read the original story from Silicon Valley Business Journal.