What's en vogue in the NFL changes every so often. Now it's having a running game. Not that long ago it was QB's slinging the ball 60 times a game. It doesn't really matter to me, but I think constantly chasing the trends is a road to nowhere. Have a vision and build towards that vision. I'm fine with whatever that looks like.
However, there are some things that never go out of style. 1. Good QB play (obviously). 2. Winning the line of scrimmage. And what I think gets lost a lot, 3. Being well rounded. You can say you want to be a running team, but when the other team has a good defense and loads up the box, you need to be capable of throwing the ball, too. Exactly what the Eagles did to the Steelers. You can say you want to have a great defense, but you are eventually going to need to score points, too. Look at the Chiefs. 4th best defense in the league, but they needed to score 30+ to beat the Bills. It's the oldest saying in the book. Can't put all your eggs in one basket.
For the Steelers:
1. QB Play : I think they know this. Everyone and their mother knows this. It's just easier said than done and I don't think Tomlin knows how to develop a QB.
2. Line of scrimmage : They forgot this for a long time, but I think Khan has taken some big steps in addressing it. Cautiously optimistic.
3. Well rounded : A little more up in the air on this one. Khan obviously failed miserably giving them a chance at a decent passing game with the WR situation this year, but I think he realizes it and that's why he was hard after a few guys throughout the season. Somewhat hopeful there. However, they had the highest paid defense and their biggest FA signing was a MLB.