We will see how long it takes to actually build talent back up
This is where I really don't get his plan. His current offer appears to be all the hard work, risk, and poorly managed chaos of a start up, but without any of the upside. Also instead of being a promising seed idea that people can reasonably hope will zoom to success, it seems rather that his revenues and market positioning are plummeting.
Maybe even worse, he has signaled multiple ways that even if the new Twitter does bear fruit, he is firmly against paying out to anyone who helped make it happen. He tried to weasel out of his signed purchase contract until it was clear a court wasn't going to have it. He asked his team to rush a layoff to land just prior to an employee stock vesting date, until again they showed him that a court would make him pay dearly for it. He has just recently signaled that he feels free to change the terms of employment on a whim without any compensation. So even if you believed the company had upside here, and you received an offer that appeared to reflect it, if you have any sophistication you'd have to consider that you may be cheated out of it or need a lawyer to collect it.
The professionals he needs by and large are well-informed, have options, and whatever the pro/con of the Elon and culture sideshow around all this, most of them are likely to ultimately act in the cold hard self-interest of themselves and their family, which demands seeking employment from a reputable firm elsewhere.