I guess your right that in the original the hands on hips Body Language says it all... But the only thing about it is, he is only addressing general veers not a large group but like I said it's fine in the original and does not need altering.... Just a small thought about making it more natural and I would be unsure if this would work in the scene or not.

But if for whatever reason you ended up going down the video screen route.. You would need an Audio line/word probably for lack of body language perhaps.