Comment by rembal

Long time ago, me and a friend of mine had a joke about PMs: to calculate how managers combine, you multiply their performance rates: two poor managers (e.g. 0.5*0.7) will give you worse performance than if you had one bad manager. My similar formula about AI and developers is that it works like raising to the power of two: if you have a bad dev, you get 0.5^2: more mess more quickly. If you have a great dev, you get 1.5^2 - exponentially better :)