I mean even beyond that, battle buddies should be SOP. Combatant or non combatant, people shouldn't wander off alone, and they should be reporting where they're going to the person up the chain of command.
I think he's looking for some sort of like standardized chain of command. While I still don't think our currently NCO infantry leadership should have the final say they should have clearly outlined duties.
Same with mission specialists. They shouldn't just be floating around aimlessly. They should be under the direct command of the Officer in charge, deployed to support combat units, or combat units should be deployed to support them.
In the end, everybody on the ground should understand the goals of the mission, their part in achieving that goal, what sorts of obstacles might prevent them from achieving that goal, who to talk to if things go belly up. And once a chain of command is established, official or ad hoc, it must be respected