Don't know why you guys chose not to use booths it would've been so much easier and it would've prevented the teams from looking at the big screen right behind them...
The reason we went our open headset solution was because we feel strongly that the players should be part of the atmosphere and crowd experience, instead of sectioned off in a booth. This allows the players to be easy to watch and accessible to the live audience.
As for the line of sight issue, we are working to address players not being able to look over the backs and up at the screens. We will be creating an overhang so this is no longer viable, and it'll be fixed for the conclusion of the playoffs as well as the finals.
In the long run, we'll continue looking at our options and picking what we think is best based on feedback and experience. Nothing's off the table.