Fire everyone making over $75k a year and then fire at least half of who are left.
It’s a little tricky. First you need to identify those actually doing the work. And you can’t be sure that those in charge will identify the actual workers , as they may be a threat to their own jobs. But you do want to keep the 30% that actually get things done. If you do identify them they will be much more effective after the 70% are removed.