Ah, but you don't have to talk about the director. They could just be like "from the studio behind Stand Alone Complex", although, then again Ghost in the Shell is generally more popular overseas. This is why I don't get involved in marketing anime.
Erm, but they did. The trailer lists:
Chief Director - Katsuyuki Motohiro (Bayside Shakedown series)
Director - Naoyoshi Shiotani (Blood-C The Last Dark)
Story Concept/Script - Gen Urobuchi [Nitroplus] (Mahou Shoujo Madoka Magica)
Character Concept - Akira Amano
Animation Production - Production I.G. (Ghost in the Shell series)
In that order!