In such a situation, you need to grow in two areas: A) Becoming a people manager. This is easily underestimated. Your job is to ensure your team works in the c

In such a situation, you need to grow in two areas: A) Becoming a people manager. This is easily underestimated. Your job is to ensure your team works in the company's best interest. That also means that the team stays a team, and is motivated. It means building a relationship with all team members. Everyone will be at a different place. B) Understanding your area of responsibility, i.e. product, business, processes, and systems. This seems to be your greatest concern. Understand that by working with the team (area A) the team can handle situations where your own knowledge is lacking. It also helps to "intern" on topics by following something like an onboarding plan for yourself, that you define together with the team. Avoid becoming a micro manager, except when it is 100% clear the team is messing things up on a topic. In general, I'd advise to be humble and transparent, and don't overpromise or overcommit to your team members. Good luck :)