The site admin can create a new game league [1], view list of leagues [2], edit the name of a league [3], or delete a league [4].
[1]: The admin user creates a new league record, passing in a unique name.
[2]: The admin user visits a page listing existing league records.
[3]: The admin user selects a league from a list, and changes the name of the league. The admin can also toggle whether high or low scores win.
[4]: The admin user selects a league from a list, and deletes the record.