Last year it was the same thing. As a manager, you get allocated a pool of money that equaled 3% of the salaries of your employees. As a manager if it was up to you, you took away from someone else to give more to the employee who outperformed more. This is the same as it was the last two years.
What's different this year is if you want to promote someone you have to take away from everyone else. Last year, there was a separate pitiful amount that as a manager you were given to promote employees. This year, there was no separate pool so if you wanted to give someone extra for being promoted, you took away from the rest of your employees. So if Bob gets promoted in your department this year and you only get 2.7%, then you know where your other .3% went!