Succeeding as a New Manager
Whether you're managing a small team or an entire department, your principal concerns are likely to be the same:
Can I still perform well as an individual, while being responsible for the contributions of other people too?
How do I set effective goals for my team?
Will the transition from "team member" to "team leader" cost me my friendships?
Have I got what it takes to motivate others and earn their respect?
What if the team doesn't like me ? or don't like each other?
https://www.mindtools.com/pages/article/first-management-role.htm