There’s a great post at Justice Everywhere by feminist philosopher Anca Gheaus on the pros and cons of using reference letters in a job search. Some of the pros: they give us a better idea about the kind of philosophical training the candidate received and allow search committees to usefully supplement the details they can glean from a candidate’s c.v. Some cons: reference letters can reproduce biases and hierarchies within the discipline.
Considering dozens, sometimes hundreds, of applications for one position is an onerous task, so it is appealing to take pedigree into consideration because this is an expedient method to decide whom to short-list or even whom to hire. […] But this is unfair to candidates: those who weren’t supervised by influential letter-writers, or who otherwise didn’t make their work sufficiently know to an influential letter-writer, have fewer chances on the job market. Moreover, relying on letters of reference can also be bad for quality, to the extent to which letters fail to closely track merit. This kind of problem will not entirely go away just by eliminating reference letters – the prestige of a candidate’s university will continue to matter – but [its] dimensions would be more modest.
For a change, it’s worth reading not only the original post, but also the comments, where a lively and thoughtful discussion on the matter is unfolding.