I'm not so sure it's about how many games Gailey and George "Superman" Edwards will add to the win column as much as it is about how many Jauron and his staff LOST for the team. Subtract at least (3) wins because of their poor teaching, game planning and game management.
A halfway competent staff, (yes, Gailey and Edwards) gains +3 just by being competent vs. previous years. Of course this is considering all else being equal, e.g. strength of schedule, etc, which are in fact not equal.