Many managers of data science teams become managers because they were great individual contributors and not necessarily because they have the skills or training to lead a team. (I include myself in that group.) But management is a skill unto itself, and relying on your experience as a successful individual contributor is not enough to ensure that you are able to retain and develop great talent while delivering valuable learnings, products, and outcomes back to the organization. Great data scientists have career options and won’t abide bad managers for very long. If you want to retain great data scientists you’d better commit to being a great manager.