They could sideline him, perhaps put him in an oubliette for a while, then make some serious improvements to the current product line and start cultivating a culture of working without Musk.
It will be extremely difficult for the board to justify that having Elon and letting him do whatever he wants is more damaging for the stock than kicking him out.
I don't get who is still out there believes him enough to put their own money into this company. But the stock keeps going up. I just don't get it?
https://www.nasdaq.com/market-activity/stocks/tsla/insider-a...
No sane board member would consider that a serious option.
Even then, Tesla's duck is cooked. They're facing strong winds, reputational and otherwise, at the exact same time as the competition have come of age.
The perfect storm. It will take time, but Tesla are done.