For first time Data Science managers, many may have the impression that proving their technical leadership is the most important aspect of leadership. This is a wrong view.
The most important thing that one must focus on as a Data Science manager is this: do what’s right for your people. This begins even before someone is even hired for your team —you must do what’s right for candidates too, e.g. by being honest with them about the job and the team, but not exaggerating the positive aspects of the job, and by showing your honest self to them. This requires a lot of vulnerability and confidence, but will pay off in the long run.
Data Science Principles 