And, more importantly, how many of those Former Tesla Employees are actually Former Apple Employees who became Tesla Employees, and then decided they would rather go back to work for Apple?
In terms of product expertise, I find a lot of similarities between Apple and Tesla. They have similar souls. Musk is a messianic figure, like Jobs, and Tesla is nearly as obsessed about design as Apple
Personally, I love to see this back-and-forth poaching. Cross-pollination of ideas can be a big boost to innovation, and if it fuels some wage growth then all the better.