Blog, very astute, I've lamented the same on numerous occasions, I now give them two chances, on the third strike they get offloaded or dead-head home. Reminds me of the North African chap who explained to me recently that he was in the flight deck to "knock-out" the other pilot if he touched the controls while I went out for a fuel jettison, needless to say he was banished to economy and I made sure he wasn't part of my crew on the way home.
I find the whole issue with the chain of command quite simple to resolve, but I can do it in my PJs with a paper in hand if needed.