This zig zag agility drill is great to use for [tag]warm up drills[/tag]. Try it out at your next practice. 
This is similar to the foot fire drill, but now this one adds a little bit of movement.
What you need – You can set up a couple of different stations for this [tag]football[/tag] [tag]drill[/tag], and then divide the players in half.
X X
X X X
How this drill works – This drill can be done a number of ways, depending on position. Essentially it will combine the forward (or side) movement and then a backward movement.
The player will start at the right cone by shuffling, foot fire (quick feet in breakdown position) or, straight ahead sprinting. Then when a player reaches the next cone, he backpedals, shuffles backward, or in the case of offensive linemen, this is a great opportunity to have the player assume a pass blocking position and shuffle back in pass pro.
The variations that a [tag]coach[/tag] can run are endless, but they will all achieve one thing – agility for your players. Try running just a straight ahead sprint and then backpedal; then you can run it with a shuffle forward and a crossover backward.
Result – Your players will develop better [tag]agility[/tag] by doing this drill and drills of this sort during the season.