How to Teach Timid or Scared Soccer Players to be Brave, Tough and Aggressive.
Should you rotate players to all positions? In most rec leagues you shouldn't worry much about positions until U-9 and some leagues require that players rotate positions until U-10.
Quick Team Improvement Program (no. 2, 3, 4, 5, 6, 7 and 9) are very good coaching tips that you should read. They will help you a lot no matter which formation you use.
Make your opponent earn their goals. This means you CANNOT push up slow Fullbacks.
Many coaches make the mistake of choosing a Formation and Style of Play that doesn't suit their team, and then trying to make their team fit that Formation and Style of Play.
How to teach "Passing To Space" is described in SoccerHelp Premium in "23 Of The Best SoccerHelp Tips & Tactics" (see no. 19 & 20).