Tesla CEO Elon Musk and President Trump have mutually decided that Musk should focus on his businesses and step into a supporting role.The decision comes as Trump's team has grown frustrated with Musk's unpredictable behavior, but they are unlikely to cut him off completely.Publicly, the administration remains supportive of Musk, but the change may not immediately affect the criticism and Tesla sales.It will take time for car buyers to return to Tesla, but people have short memories, leaving room for possibilities.