As I wrote about earlier today, there is a very good chance that only Tyler Matakevich will remain from the 2016 NFL Draft class when the Pittsburgh Steelers take the field for the first snap in 2020. And that is significant, considering that class including three players who were starters as rookies: Artie Burns, Sean Davis, and Javon Hargrave.
Of the three, Hargrave is the only one who has attained his standing. Of the three, he is the only one who is likely simply going to be too expensive for the team to be able to hold on to.