Just as many carriers. There's hardly a fair way to tell which 20% of the workforce "deserve" to go in such a situation. Of course, there are always some obviously troublesome people who will likely be first on the wrong list, but many get on it for reasons that are rather subjective. As you can read on all the other threads where the topic of seniority has been done to death, even the classic LIFO is very far from perfect. Actually, any strategy is equally bad if it puts you on the wrong list.