Hi,
I believe this is a subject that has been suggested over and over, but I've been noticing that recent changes of the game may have pushed this up from "well, someday" to a "possible" improvements list.
The idea here is to extend to players what we already have for staff: a special atribute that should work combined with the skill set of nowadays; this is not a proposal to make specialists like those classes in RPG that end up defined just by these atributes.
It's more like a general thing, and could be started with a couple of them for positions: "ball denier", "pick and roll enthusiast", "slasher", I don't know, but things that would not be read from the skills as obvious (of course a legendary shooter with marvelous range is a 3pt threat, this is the sort of thing that don't bring anything new).