One place where clearly Bill has not adopted is in his conservatism on game management. If you know your team is better than the other team, then it makes sense to play cautiously. When you are the underdog, you need to choose the high variance option - you are probably going to lose anyhow, so you should clearly throw the dice if it gives you the opportunity to win.
So clearly Bill is still living in the past when he decides whether or not to go for it on 4th down. The analytics have definitely pushed the whole League to be more aggressive in that situation anyhow, and when we are the underdog we have to be even more aggressive than others.