One of my favorite shows to watch every week during the season is "Playbook", which can be seen every Friday night on the NFL Network. They do great job of previewing the upcoming games and you always learn something thanks to their all-22 play break downs.
In their preview of the Monday night game between the Pittsburgh Steelers and the Cincinnati Bengals, they took a brief look at what James Harrison brings to the Bengals for starters. In addition, they illustrate how both Isaac Redman and LaRod Stephens-Howling both failed to read blocks in the Sunday season opener against the Tennessee Titans.
I have included gifs below of the two runs in question for you to study after you watch the video.