BTW, I heard Collin Cowturd on Fox make almost this same argument about Mike Tomlin and the Steelers yesterday. "He is too old school, his offense is antiquated, his coaching is stale, you can't win with just defense and special teams, he was only elite when he had Big Ben, a consistent winning record is overrated...."
There is some irony in the two longest tenured head coaches with the same team in both leagues, whose teams wear near identical uniforms, falling under the same criticism that the game has passed them by.