The Pittsburgh Steelers defense in 2018 was getting burned regularly by athletic tight ends. Travis Kelce, Jared Cook, Austin Hooper, even C.J. Uzomah recorded at least 50 yards against the Steelers, with both Cook and Kelce passing 100 yards.
That offseason the Steelers brought in Mark Barron and drafted Devin Bush to improve their tight end defense, and it worked, the Steelers allowed 57 yards to George Kittle and 100 yards to Hunter Henry in a game that Mark Barron and Steven Nelson missed, and both Joe Haden and Devin Bush missed chunks of the game to injury.