I like to use quick [tag]football lineman drills[/tag] to warm up the linemen before doing an individual [tag]football drill[/tag].

The players line up in two lines (more if you have a large team).
When the [tag]football coach[/tag] yells “ready”, the front guy in each line starts chopping his feet.
The coach will yell “Right” and the guys drop their right hand to the ground and run in a circle around it, then stand up and keep chopping their feet.
The coach will then yell “Left” and the guys drop their left hand to the ground and run in a circle. After they stand up, feet still chopping, the coach yells “go” and the guys sprint 5 yards.
This is a good [tag]football warm-up drill[/tag] for footwork, hip flexibility, and movement. Look for the players to run controlled in a circle, and keep a base (2 point stance i.e. hips bent, head up) while chopping. The little spin helps with coordination.
You can run this drill fairly quick with each guy doing it 2 times. You might need to start with 4 reps with young players or those new to [tag]football[/tag]. It sounds simple to do, but you would be surprised at how uncoordinated some players will be.