Originally Posted by figment 
Theoretically I agree with the strategy. But as rjshae says if all does not go well then what. Some of these resources may be useless in construction phase but I would bet that these people could add to the overall quality of the first game at all points. If they decide that keywords for dialog doesn't quite work and need something else do they forge on or get designers back involved and put in dialog trees. Writers can refine the dialog and make it more cohesive or review others work.
Yeah, there's some risk. Crossing my fingers and hoping for the best…