Really? I've never had success with a "design by committee" approach. For me, it's always worked best to have one person work on a few screens, pull everyone

Really? I've never had success with a "design by committee" approach. For me, it's always worked best to have one person work on a few screens, pull everyone into a room, beat it up, then send them back to fix it up. Repeat a few times. Meaning: one author, lots of feedback. The author owns the design.