Metrics can be difficult to get right. Many of them come with unintended consequences when an employee takes them to an extreme.
Do you know the reason for your success? Was it the brilliant business plan that anyone could make money on or was it the employee's amazing execution on a mediocre plan? Or what if your company isn't doing well? Do you know what should be blamed... the plan or the execution? The "5 Things" matrix can help you figure that out.