[strlen]

If I recall correctly, Netflix does this: cutting n percent of the workforce on a yearly basis ("adequate performance gets you a generous severance package").

It's countered by paying above market salaries and ensuring that these salaries _remain as such_ (even going to the point of where employees aren't discouraged from interviewing elsewhere to "sample the market").

Microsoft, I believe, does something similar. Whether it's the right approach is another matter.