I agree. I think you need to be very careful about giving uni-directional advice like the OP, when in fact you are optimizing a U-shaped curve. Too little AND t

I agree. I think you need to be very careful about giving uni-directional advice like the OP, when in fact you are optimizing a U-shaped curve. Too little AND too much use of metrics is bad. The advice for a given company will depend where they are on that curve.