I think you'll find the only person who ever said "No!" to George Lucas - and got away with it - was his first wife - who he divorced after "The Empire Strikes Back", if memory serves.

Anyone who makes movies or television, from Spielburg to Sommers to Roddenberry and Berman, Russell T Davies to the guys who make "Heroes", could use someone like that, an objective, unbiased opinion that won't get fired for it.