My opinion is that they are the worst idea ever created. They incentivize infighting and undercutting each other. They lead to situations where everyone on your

My opinion is that they are the worst idea ever created. They incentivize infighting and undercutting each other. They lead to situations where everyone on your team is a top-notch performer but you have to cut someone, so you fire someone who's doing a great job. Or the reverse, everyone on your team is a complete fuck-up, but you have to give bonuses to the top 10% or whatever, so you reward people who are doing a terrible job. Nobody I know who has been involved with them (including the managers who have to do cutting and bonus-giving) thinks they're a good idea.