People forget how frustating things were under Dabol at times.....we all remember how it ended with Allen playing at his absolute best in those playoffs. I still give him the nod because he helped develop Allen, it is a thought exercise to think about whether it all happens without him or not but he was there for Allen going from a wild untamed player to elite NFL QB.
On defense, I think McDermott deserves the credit even though there are DC's, not that different that OC's in KC. This is McDermott's defense.