Begin with the team without the ball
Follow the nearest defender, then the players behind them. A press is not simply one player running towards the ball. Teammates need to close useful passing routes or protect the space that the first player leaves. If the first defender moves alone, the opponent may be able to play around the pressure.
Find the spare passing option
An overload is a local numerical advantage. Pause mentally around the ball: who can receive, who can support and who is marking whom? A spare player matters only if a pass can reach them. Body orientation, passing lanes and the speed of the next action can make an apparent advantage difficult to use.
Read the cost of gaining territory
Moving a defensive line forward can compress the playing area and support pressure. It can also leave room behind. The relevant question is whether pressure on the ball makes a pass into that space difficult. Avoid judging the line separately from the players trying to stop the pass.
Track the adjustment
Watch the next few possessions after a substitution or shape change. Does a full-back stay wider? Does a midfielder drop to receive? Does the opponent follow? These observations give you a testable explanation. A formation graphic is a starting point, not a complete description of how the team plays.
Put the idea to work.
Illustrative passage: a winger receives near the touchline, drawing a defender out. A teammate then runs inside. Watch whether the covering midfielder follows the runner or protects the central lane. The useful detail is the decision created, rather than the formation name.
Take this into your next session
For five minutes, follow one passing lane instead of following only the ball.
Does this guide predict an outcome?
No. It teaches a way to describe patterns and assess evidence. Outcomes depend on more than the examples here.