Fabrice Coffrini/GettySince Sam Altman's ouster last year, OpenAI has had major personnel changes in nearly every part of the business.The company has been on a hiring spree, from research teams to the legal department to the board of directors.Here are some of the key people to watch going forward.It's been a wild year for OpenAI. Last November, the sudden ouster of CEO Sam Altman and the resulting revolt by most of its employees cast doubts on the future of the world's most prominent AI company.