Possibly, but if they did that, the other elements of the game wouldn't improve so much, so it wouldn't be rated so highly because it wasn't improving. Besides, switching adds an extra element of strategy to the game. ;)
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Signature credited to Nathan (or whatever he decides to call himself next)MSN address: yamiken (at) hotmail (dot) co (dot) uk
[size=6](You know the drill, remove the spaces, replace the at with @ and the dot