We definitely need an A team for CSS, so you should create a thread to see who would actually like to participate properly in it. Make sure that your training times are totally different to that of the TF2 team, then you won't shoot yourself in the foot in getting enough players. If there aren't enough players from ATK at present, then find some somewhere else and get them to join!

CSS is still an incredibly popular game, still more so than TF2 etc so that is really no excuse.