In some ways, Tesla is doing something very creative, not just in cars, but in manufacturing.
Did they ever solve their executive churn issue? If not, that's a cultural issue which needs to be fixed. Then, they do need some experienced durable goods engineers, and to focus on reducing the error rate in their manufacturing. (And that will probably only happen once they get less dependent on Chinese manufacturing. Lots of surmise, based on friends who were recruited, and passed, years ago/my experience in manufacturing in a totally different industry.)