When I had the privledge of working with Innominate on the CSM I noticed that he was consistently a check against potentially catastrophic situations that were seemingly unforseen by CCP.
CCP would say “here is our idea for THING” and Innominate would say something like “well if you do that then the players will just do Highly Specific Counter THING” and CCP would be aghast at how they could have overlooked this fact.