My understanding is that McDermott is a "Defensive HC". A lot of people think the defense will get better if Frazier is gone. If this defense is McDermott's scheme, and the personnel we have on the roster have been picked for their fit to the scheme, what is the expected upside of replacing Frazier? Is it simply play calling, or do people think McDermott is going to give free reign to a new DC to install their own system?