You can now designate additional team players to be Co-Captains on their teams. This allows the captains to share the load of the team management responsibilities. Only site admins can assign a player to be a co-captain.
Note: Co-captains are able to manage the team and its roster.
Hover over the Manage tab and click on your program type (league, event, tournament, camp):
Click on the Teams tab and select the team name in which you are adding a co-captain to:
Click the Move Player icon next to the player you'd like to make a co-captain and finally click the green Make Co-Captain button. That's it!