[throwaway345826]

Thanks for responding.

We have our own ideas about who we would like to stay (I mean, aside from "everyone" :( ), but we plan to tell everyone the severance package so that anyone we want to stay can still make their own decision with all the info.

This means then we need an idea of "if X doesn't stay, who Y should we ask to stay instead?", which comes uncomfortably close to stack-ranking.