So, what you are saying, is all 12 current forwards are great at defending in their own zone? Also, all the current starting forwards are the future of the Sabres?
Not sure where you came up with your CoHo theory.
If Grigs is projected to be a part of the Sabres future, and he can't go to the AHL where he needs to be, then yes he should be in Buffalo where he can learn by being around pros setting a good example, and benefitting from their skating coach.