Holistic Filing?

At the risk of being considered unprofessional, I'd like to touch on the idea of "holistic filing." Because I shelve lots of easy fiction (picture books) at my library, and because I have always been on the public service side of things rather than the tech or administrative ends, this concept recently surfaced (while shelving, of course) and represents, perhaps, a practical, albeit novel approach to filing/shelving. Here goes: Why not lump all common author surnames (Andersons, Browns, McDonalds, Smiths, Williams, etc.) together on the easy fiction shelves and file the books alphabetically by their titles? Wouldn't the shelving take less time, the customers find the titles they are looking for faster, and the clerical staff locate the books requested by customers at other libraries more quickly? Rather than all of these folks having to take the time to figure out what the first name of the author is (Is it Marc, Margaret, or Ruth Brown?), and then figure out where, alphabetically, the author's works fall among the other, like-surnamed authors (a real challenge for much of the general public), then locate the title they want, why not streamline the process and provide better customer service? At least in the easy fiction/picture book sections, where the spines are thin and the quantities are often huge? Is it because it might stress out the catalogers (are there any left?) or offend library administrators (who have more time to philosophize)? Or is it because I am under-complicating the issue?