As far as the girl's game, my understanding is that names were submitted and then chosen from that list. There were some potentially key players that I heard weren't available-college summer school, vacations etc. As far as skill and talent, at least offensively, the style of play that was coached did not play to the strengths of the players on the team. Knowing many of the NC players, there is some difference in overall talent, though not huge (in that respect some of the NC players that opted out would have made a bigger difference). The NC girl's team is defintely deeper.
As far as the refs, I don't know about the selection process