I think both are spots that need to be looked at. I think the position coaches on the defensive side are good but I think Mattison lacks the killer instinct that the players have been drafted and taught to have in the past.
But on Offense I think its the opposite, we have need some better position coaches to refine techniques and help Cam game plan. Cam needs to improve play calling but I think that's also a product of him needing to have a few more of the players having experience in his system. Look for next season if he is there to have an offensive explosion.