Red teamers must also be practical. A red team is a model because in the real world it’s prohibitive (and impossible) to recreate an adversary in every detail. As a result, we must find a balance, and part of finding this balance is being consciously aware of the gap.
To this end, we encourage red team project leaders to frame the scope and character of the red team deliberately before setting the team free. If time and money argue for a unitary adversary model, so be it, but the project leader should be aware of the gap between the unitary model and a more realistic one, particularly when analyzing and reporting on the red team’s efforts.
I've been following Red Team Journal since Mark started the blog a few years back. You should too.
This post has so much in it, it is a must read for all red teamers.