Even 1:5 PM ratio (not engineering manager, where the engineer can write programs as well) is bad when PMs are fighting for engineer attention instead of having

Even 1:5 PM ratio (not engineering manager, where the engineer can write programs as well) is bad when PMs are fighting for engineer attention instead of having a complementary role of communiating in a way that engineers with deep technical knowledge are unable to because of their closeness to the technical details of the product.