It's clear that head coaches find persons that they've worked with, but do head coaches look for specialists in a certain area. For example, my read of Jeff Battle's bio indicated that he specializes in working with guards and has an impressive resume of developing future NBA guards. Does a coach look for a guard specialist that can recruit and a big man specialist that can recruit so that he can sell the qualities of those specialists in developing players? Does a coach look for someone that's very good at developing defensive gameplans and one that's an offensive wizard--sort of like offensive and defensive coordinators in football? I'm curious. Seems like it would be easier to recruit big men if you had someone that could demonstrate a track record of developing all-conference big-men, same with guards. But I'm just curious, aside from recruiting, what the logic is with assistants and how duties are usually assigned once they are hired.