Soccer Defensive Footwork -- Side Shuffle, Crossover Step, Back Peddle and Drop Step.
Your Center Midfielder is a very important attacking position, especially if your formation only has 2 Forwards.
How to teach "First Attacker/Second Attacker/Third Attacker" is explained at "First Attacker" in the Dictionary, and In Premium at "Scoring More Goals" and "Attacking Plan".
Slow Running Might Not be Best for Soccer Players and Might Train Muscles "Wrong".
When I started coaching I thought it was a good idea to rotate every player to every position. In hindsight, I don't think that is necessarily best and I don't think your are pidgeonholing or depriving a player if he doesn't play every position.
The Most Important Things to Teach Youth Soccer Players are explained.