In an attempt to lure more stupid people to their morning newsblock, Channel 7 has replaced traffic reporter James Lawrence with what sounds like a 14-year-old girl named (we think) Laura Liggett. Whereas Lawrence's reports sounded smooth and professional, Liggett's are punctuated with lots of ums and giggly yammering.The upshot of bringing her on board, however, is that weatherbimbo Andrea