Technically Our Sports Team only supports one team at a time, so that is the only “supported” configuration. However, there is a way you can use the site for more than one team:
If all of your team technically have the same name and colors (You’re all named the Oakland Eagles”, but have Varsity, Junior Varsity, etc) then all of the teams could probably share the same site. You can use Roster Types, Schedule Types, and News Types to keep their items separate.
So for example, instead Roster Types of Players and Coaches, you could go into Team Rosters > Roster Types and replace them with Varsity, Junior Varsity, etc. Do the same for Schedule Types and News Types.
Your main menu won’t change automatically, you’ll probably need to go into the Appearance > Menus area and add those Roster, Schedule, and News Types manually.