Not everyone chooses a film because of who directs it or who the screenwriter was, but some of us do, and now with databases like IMDB we can easily find lists of films containing the actors we like, or directors and discover more things we might like to watch.
I think books can be the same. Currently I don’t get to know who edits each book, or acquires the rights, but if I did I might start to follow their work. Authors need not be the only brands. Publishers can establish a brand identity the way imprints used to. Most will have to start over as they’ve diluted any meaning they ever had.