Also rename it "Attrition" or the like, so 70% Readiness equals 30% attrition.

Full effect when attacking, half effect when defending.
Makes the whole concept easier to understand, especially for the new players.

Do you mean fatigue? Attrition is being worn down in the sense of losing something permanently. If it were renamed in this way I do think the scale would need to be flipped. I don't recall ever having any trouble with this concept at all when I started playing though...

attrition is more like the food decay