Shai Agassi has guided Better Place's vision of swap-and-go battery stations for electric cars since it was founded five years ago, but now he's stepped down as the firm's CEO. Evan Thornley, who helmed the organization's Australian efforts, has taken up the mantle of global chief executive officer, while Agassi will continue his role as a board member. As the Wall Street Journal notes, the changing of the guard comes at a time when the company has been spending cash faster than it's generating revenue tha