Steelers impressed more each day with Harris

Steelers running back Najee Harris at practice this week.The Steelers knew when they selected Najee Harris in the first round of this year's draft, they were getting a well-seasoned player.

After all, Harris had spent all four years in college at Alabama, where he was in a competitive backfield situation with the likes of Josh Jacobs and Damien Harris, who also are starting running backs in the NFL. You either played well, or you didn't play.

But the Steelers have been impressed with the 23-year-old's ability to not only adjust to the NFL game, but to do so quickly. His maturity level has perhaps been the most impressive thing and it's a big reason for the Steelers' rebound from a 1-3 start…