My guess is that all three play. As far as Ben is concerned... even if his arm is weakened by a shot-up AC sprain in his shoulder... he STILL won't be the QB with the weakest arm on the field!
Dulac tweeted out that he was told that Brown would be good to go next week in Denver. Given how quickly Toussaint went through the concussion testing last night, I think Brown will make it through the protocol with no issues, if you catch my drift.