I detest Pittsburgh so it's not easy for me to say this but I do think they got a future star at running back in Najee Harris. No, he doesn't have breakaway speed but with decent blocking, he's a terror in the 10-30 yard range. He's a bruiser, will break tackles and move the chains. I hope I'm wrong but that pick alone has made them more dangerous offensively. Whether Roethlesberger can stay upright for a whole season is another topic but on paper, they should hold their own scoring. As far as their other picks, who knows. Never heard of any of them.
They were going to get one of the big 3 RBs there (Harris, Etienne, Williams). It was just a matter of who. Couldn't go wrong with any of them.
Their line still has holes though, so I mean...they're just one sack away from a dead season.