Even in the best case, where you create a flawless metric that cannot be gamed, it's typically just one aspect of the job. If people get rated on that metric,

Even in the best case, where you create a flawless metric that cannot be gamed, it's typically just one aspect of the job. If people get rated on that metric, they'll maximize it at the expense of the things that can't be measured. But, there are tons of subtle ways to undermine metrics. Want to be the top salesperson each month? Give negative feedback to candidates for open positions that seem too strong.