I have been saying this for years. It immediately gives you an out ball, and secondly, the opposition is forced to keep at least one, if not 2, players back. Now that we have the speed and trickery of Scienza, it makes even more sense to have him on the halfway line. If I were the opposition, I would definitely keep 2 players back as I would fancy Scienza in a one-on-one situation with most players.