Why you should be excited about
* He’s a two-down run-stuffer who, at 6-foot-7 and 352 pounds, is very difficult to move when he plays with leverage.
* Defensive line coach John Mitchell sees McCullers as providing for the Steelers “some flexibility,” due to a perceived ability to “play outside (at defensive end) or inside (at nose tackle).” Mitchell said the plan is to have McCullers work inside initially.
* He blocked two kicks in 22 games at Tennessee.
* He registered 33 tackles (21 solo), a half sack and 4.5 tackles for loss while playing defensive tackle in 2013.