Why It Worked | LeSean McCoy’s 21-yard Walk-off Touchdown


Dec 10, 2017; Orchard Park, NY, USA; Buffalo Bills running back LeSean McCoy (25) runs with the football defended by Indianapolis Colts outside linebacker Barkevious Mingo (52) during the first half at New Era Field. Mandatory Credit: Timothy T. Ludwig-USA TODAY Sports


Running back LeSean McCoy, hit a home run in the week 14 game versus the Colts with a play call that has had success this season. That concept is called ‘Duo’.

‘Duo’ is often confused with inside zone because it looks very similar. But instead of the offensive linemen stepping and blocking in the same direction of the play and the center working towards the Mike LB, on ‘duo’ they typically block down, against the play direction, and the center is identifying and working toward the Will or weak side linebacker. Those down blocks are why it is commonly referred to as a gap run with no puller.


With 1:38 left in overtime and the Bills faced with a 3rd-and-3 situation, Dennison dialed up ‘duo’.

They send out 12 personnel, but offensive lineman Ryan Groy takes the place of the tight end.

Center Eric Wood has a shaded defensive tackle, so he and Vladimir Ducasse secure the tackle, and Vlad works to the backside linebacker.

According to Richie Incognito, the frontside was set up perfectly as the defensive tackle was in a wide 3 technique, which allowed Richie to widen the hole, Dawkins to overtake the tackle, and then put Richie on a nice track to the inside linebacker.

On the snap you see Richie step with his outside foot and go hip-to-hip to bang the tackle over to Dawkins and then climb to the second level.

Shady presses the line of scrimmage with patience and then hits it en route to the walk off touchdown. This was the icing on the cake for what was a tremendous day on the ground.

Take a look at how the Bills have utilized the concept this season and how it was perfectly executed to give the Bills their 7th win of the season.

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