Tesla Inc CEO Elon Musk opined on Thursday that executives of EV startup Rivian Automotive Inc (NASDAQ:RIVN) will need to invest more time in the company’s factory to prevent an impending bankruptcy. What Happened: Musk suggested that Rivian needs to take two steps to ensure continued survival: cut costs and spend more time in the factory. “They need to cut costs massively, and the exec team needs to live in the factory or they will die,” the billionaire CEO said. This comment follows Musk’s statement from Wednesday that Rivian’s current trajectory “looks like it is gearing up for bankruptcy i…