https://en.wikipedia.org/wiki/Jim_Pattison
... used to have a policy in effect in his car dealerships that the worst producing salesman would be fired every month.
For instance, this is remarked upon in this National Post article:
http://www.nationalpost.com/story.html?id=fb5f68f1-5946-4b46...
(search for word "salesman"). I think, no conditions were applied. Worst just meant not as many sales or as much revenue as the second worst salesman.