To be technically accurate:
Roberta was never ‘officially’ an employee of Sierra.
She was always an independent contractor, and didn’t really have a title, other than ‘independent contractor’. We contracted her for ‘design services’.
Roberta was paid for her games via a royalty on their sales. Both Roberta and the company made a lot of money off of this arrangement.
In addition to her providing design services to the company, she was also on its Board of Directors, where she added tremendous value.