Give Producer more control
The Producer role is extremely limited when you look at it more closely. Why can a Presenter decide to share his desktop and have it go straight to live without the Producer having to approve it? The last event we had someone accidentally shared his screen and it took a few seconds to get that off live and put back what was supposed to be there. It's also silly that a Producer can mute a microphone but can't unmute it. I understand that MS says that was by design so you can't accidentally unmute someone when they don't want to be unmuted, but come on - in a Live Event you had better be sitting there by your computer waiting to speak when it's your turn.