To access a team's statting menu, simply tap the small "i" icon next to your team's score. (see image below)
From this menu you can perform the following actions...
Enter a Timeout (Half or Full)
Enter a Technical Foul (player or bench technical) and any free throws associated with it.
Enter a Team Turnover
Change a Team's Color - This will temporarily change a team's color for only that game.
Add a Player - Rosters aren't always perfect before a game starts. This allows you to add a player to a team on the fly.