Good Evening,
With reference to your query,
Firstly congrats for your promotion.
So,now as a leader of your team you have accountablity for the same.
Just analyze the different features the team members posses & one should be ready for shared leadership and the other thing that is important is to Compete against the Situation/Circumstance rather than internal competition.
Hope it does your need full.
Respects & Regards
Hansjeet