Tesla Inc (NASDAQ:TSLA) shareholders may not love hearing that the electric vehicle stock has lost one of its top analysts. Morgan Stanley has assigned a new analyst to cover the stock, and he comes in hot with a downgrade on the stock.Tesla stock is among today’s weakest performers. What’s behind TSLA decline?The Morgan Stanley Analyst: Morgan Stanley analyst Andrew Percoco has taken over coverage of the automotive sector, which was previously handled by Adam Jonas. Percoco announced several new ratings an ...