Yep totally. It's something I've incorporated. Especially where the main incident commander gets overwhelmed with decisions, tunnel vision or distraction. For example getting trapped into threat hunting rather than commanding.

I actually think most cyber incident responder training for the commander is pretty weak because it doesn't do a great job of instituting the stress element. Physical security training does it in a much better way. The result is the need to create custom stuff. Because some shitty off the shelf big vendor table top or similar ain't gonna do it.