These are [tag]football practice drills[/tag] for teaching players to stay low, shed multiple blocks, stand their ground, find the ball carrier, and most importantly get excited about hitting.   Give this [tag]football drill[/tag] a try and let me know how it works for you.

Shed Drill
Put your biggest and most aggressive players in one line, 5-10 players, and the rest of the team in the other line.   The first football player steps out 3 yards and turns around.   The last player is given the [tag]football[/tag], although you could place the ball anywhere in the line to focus on recognition.

On the whistle, each player attacks a side of the LB/DL out front. They do their best to alternate sides but it is not necessary.   They all take a turn hitting the player with very little time in between hits.

The LB out front will have a good stance, hit and shed every player as fast as possible while owning the ground he stands on.   Once he has hit and shed all blockers he will make a form tackle on the ball carrier at full speed.   He will then rotate to the end of the line to carry the ball.