This post will give you some advice about the mental club of soccer.
Managers will tell a football team how they really want them to play when they're in possession of the ball. They may pick to play a possession-based game that grind down the opposition and brings the defence out of position. Another style might be to play with speed on the counterattack; this model is played so that after the ball is won back, the club will press rapidly up the pitch. The latter of the 2 styles needs quicker footballers, but the former needs more technical players that can keep the ball and play many different types of moves. Football offensive schemes will depend upon the type of footballers a manger has at their disposal, and this is why selecting the right types of footballers is so essential. The Reading owner would anticipate a coach to be aware of what style of attacking football they really want to play and choose the footballers appropriately.
The best football formation for possession may well be a 4-2-3-1, but there are other ones that work too. A coach must decide the formation carefully as it will dictate how a group can play, but what they must also be is versatile to change this during the game. If an opponent team plays a strange formation they weren't expecting, then they have to be flexible enough to adjust to that. It take a wonderful football brain to be able to adjust to these kinds of circumstances. The Amiens owner would expect that the footballers in the team have the intellect and versatility to alter both to the managers wishes but also to the opponent.
Football defences are probably the most organised components of a group. As defending doesn't entail having the ball, it means all footballers can do is produce a hard formation to break down. A quality defence is one that is organised and will force the opposition to play in a way they don't really want. It typically involves to rigid lines of four, which will try to push the opponent out wide, a position that is much harder to score from. Another advantage of doing this is that it forces the opponent to shoot from range, which again is a harder to score from. Defensive football strategies must be in relation to the style of the opponent; for example, if the opposition play with speed, the defense must not hold a high line. Other football defensive schemes can include pressing the opposition and seeking to win the ball back in their half, this sort of football is tiring and will require highly fit players. The AC Milan owner would expect the team to be well coached in how to set up when the opposition has the ball.