Eagle is the most pass heavy group of any we've looked at, with four wide receivers and just one running back on the field. The numbers system calls this 10 personnel.
Both the tight end and fullback have been lost for the third and four receivers. This is quite uncommon for the Redskins. With receiving tight ends like Fred Davis and now Jordan Reed, they like to keep those weapons on the field in obvious passing situations. Their size and athleticism creates more of a mismatch than a fourth receiver will. But if the Redskins wanted to get Pierre Garcon, Josh Morgan, Leonard Hankerson and Santana Moss on the field at the same time, this would be the personnel group. Spreading out the defense would be the objective of this group, but with the added threat of Robert Griffin and the read-option, the Redskins could try the occasional run play.
Trey, or 13 personnel is another uncommon group. Three tight ends take the field alongside one running back and one receiver.
The key to this group is having versatile tight ends. Davis, Reed and Niles Paul can all be moved around the formation, and Logan Paulsen isn't exactly the worst receiver. It's unlikely you'll see this group often next year, but it'd be interesting to see how the defense reacted to Reed, Davis and Paul all on the field as receiving tight ends.
There you have it. Those are the eight basic personnel groups the Redskins use. If you liked this series of playbook posts, feel free to leave suggestions for what you might like to see next in the comments section.