The way I look at Pittsburgh as a whole:
They have some awesome scouts who can recognize talent. On raw talent alone on offense, they are IMO the best in the league (WRs, RBs, TEs, OL). The problem for that team is the coaching, attitude, management, etc. Why is that?
Their coaches aren't fully prepared for every scenario the way BB is. Their entire team from the coaches down to the players don't fully know the rule book and then make non stop excuses when the rule is clear as day. The way they tackle as a team is not only physical, but bordering on dirty (I see everyone on that team lead with the crown of their helmets), going for kill shots instead of making a textbook tackle. Their whole culture is reflective of perhaps the fastest car on the race track that is rough around the edges and full of impulse.