I propose that we break this down into two items: one, rounds of questioning; and two, speaking order.
On rounds of questioning, the motion is that the witnesses from any one organization shall be allowed 10 minutes to make their opening statement. During the questioning of witnesses there shall be allocated seven minutes for the first round of questioning, and thereafter five minutes shall be allocated to each questioner in the second and subsequent rounds of questioning.
I think that if we can use this for the moment, it would be fairly easy to get a consensus on the matter.