Prior HC's and OC's do matter. HC/OC may be the biggest part of a successful offense. Look at Shanahan. He has success with JG and now with Purdy a last pick in the draft. . Look at what Johnson did with Goff, What Waldron did for Geno Smith. Not saying everything has to be perfect for DC to return to or be even better than he was in OAK/LV . But you can't have a coaching staff as bad as ours and expect much good to happen pretty much whoever is @QB. Really, can you name a coaching staff as bad or worse than ours?