Games View-Able?
Furthermore, I do not think you should be able to do sandbox against people in your own league, unless both teams allow it. I admit, with the current system, I ALWAYS scrim people in my league to make sure I can win. That is highly unfair, but currently possible. It should not be possible.
Last bit of suggestion, when a friend option becomes available, you should have a spot that reads: Users allowed to see my Sandbox Games (maybe change the name to Scrimmage): Then you can set what players can look at them, or just select everybody.
As always with my topics, please do add your own stuff, criticize me, and so on. Any addition is welcomed and encouraged =D