Fancy learning about soccer and its countless nuances, then look at this manual.
If you were to question any trainer how to attack in soccer, practically all of them would tell you that speed is one of the key factors. The best attackers have both swift feet and even quicker heads. A defense that has time to reorganise is one that is much harder to break down; so, it's vital that when a team gains possession they move forward quickly and do not faulter on the ball. It helps if the players are quick across the ground, as this gives defenders a genuine dilemma in that they have to give the attacker space. Soccer rules make it hard for an attacker to linger behind defences, so they must be brief enough to run in behind without being offside. The AC Milan owner would be expecting the team’s attacks to actually have speed and likewise precision. There is no point in an attack being quick if it is going to be short lived, hence, players must make the right decisions at speed. A mistaken pass can lead to control being lost, but if they can execute the correct pass it will almost definitely lead to a tremendous opportunity to score.
The best soccer books will go into fantastic detail on the formations and styles of play that work if your main aim is inhibit the opponent from scoring. When a perceived weaker side comes up against a good team, they will commonly play in a rigid way that makes it quite hard for the opponent to score. If you can avoid the opposition scoring, you're guaranteed to get at least a draw; however, if you push for a goal in the later stages of the game, a team can snatch a victory. The West Brom owner would understand how effective this tactic might be, as in the past they have had some managers that were experts at this style of play.
There are numerous technical soccer drills out there, and coaches will go with them to fine tune a group and the players so that they all acknowledge what the game approach is. If a team doesn't have a thorough game strategy, then they will perhaps struggle to work together. The St Mirren owner would of course anticipate the club to be organised in a way that each player knows the role they must play. If a group is organised well enough, they will end up being greater than the sum of their areas, and this is the primary goal for a trainer or manager. There are many instances of a group that is perceived as weaker than the opponent, but they still overcome that gap in quality by being perfectly organised and executing the game approach.