There have been tomes written on team management, but, if you whittle it to the core, it boils down to the following.
You set crystal clear expectations so that everyone knows what is expected out of them. You create an environment where everyone can thrive and meet/exceed the set expectations. You periodically check-in to ensure people have what they need to excel. You hold people accountable. If you see people meeting/exceeding the set expectations, you positively reinforce it. If someone is not able to meet the set expectations, you figure out what is going wrong and fix that. Rinse and repeat.
The above is management in as few words as possible.
Multiple books can and have been written on each sentence in the above paragraph.