http://iscoresports.com/

In play mode player numbers does not show up. With it first loads you can briefly see them, then the disappear.

Make sure you set the players that are in the game at the beginning to Starter = YES. The players that are set to Starter = YES are the ones that will appear on the button bar. If you start a game with no starters for a team, select Lineup from the scoring screen and set one or more players to Starter = YES.