One thing about "you get what you measure/pay for" is that if you're clear about your incentives its much easier to see how your expectations and the employee's

One thing about "you get what you measure/pay for" is that if you're clear about your incentives its much easier to see how your expectations and the employee's actions misalign. If you hide your measurements and incentives behind a complicated or arbitrary system you'll never spot the misalignment.