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Minnesota's offense is only successful if their potent power-running game is working. To combat the efforts of their bruising duo, Adrian Peterson and Toby Gerhart, the Redskins should alter the alignment of their defensive line.
Haslett can counter the Vikings' power game by condensing the alignment of his defensive line and shifting them further inside. Rather than occupy their usual two-gap spots over the offensive tackles, Washington's defensive ends should slide inside and align either in the guard-tackle gap or head-up, directly over the guard.
The trio should then shift towards the run strength of the Vikes' formation. This should mean that both guards and the center are regularly covered up.
By clogging the middle, the Redskins will be able to force Peterson and Gerhart to the outside and right into the strength of the 3-4 front. With a safety joining the linebackers, the Redskins should have enough defenders to chase the Vikings' runners down on the outside.
Funneling runs to the edge may seem like a risk against Peterson, but his lateral speed is not what it once was. Covering up the interior of Minnesota's front five should also ensure that Fletcher and Riley are kept clean to attack downhill and pursue sideline-to-sideline.
Everything the Vikings do on offense is predicated by their power-running game. Shut that down and the Redskins will give themselves a great chance of securing their first home win of the 2012 campaign.