A lot of management work is merely reporting up down sideways. The manager:engineer ratio is high because a human manager cannot keep up with so much reporting

A lot of management work is merely reporting up down sideways. The manager:engineer ratio is high because a human manager cannot keep up with so much reporting for so many people. They can't even keep up with all 1:1s. With generative AI, a lot of reporting will become automated, reducing the need for managers to spend time on reporting. Efficient companies will figure out that manager:engineer ratio does not need to be so high.