“Who loves the battle?” “Carlin loves the battle.” This rallying cry is repeated throughout Our Very Own Carlin McCullough, a play written by Amanda Peet currently in its world premiere at the Geffen Playhouse. Carlin, ten years old when the story begins, is a tennis prodigy, and she is everything to both her single mother … More Theater Review: Our Very Own Carlin McCullough at the Geffen Playhouse