Off the top of my head - No. I cannot think of any products which would require more than 3/4 core metrics.
Each product should be measurable by 3 to 4 metrics max. If there are more metrics which are considered "core metrics" it will be very difficult to ascertain how its exactly impacting your product, to detect how change in one metric affects another will become too complex. i.e. metrics have some sort of relationship between them.
Each product should be measurable by 3 to 4 metrics max. If there are more metrics which are considered "core metrics" it will be very difficult to ascertain how its exactly impacting your product, to detect how change in one metric affects another will become too complex. i.e. metrics have some sort of relationship between them.