A training week is not a series of independent sessions. It is a single structure in which each day's content is determined by its distance from the last match and the next one.
Recovery time dictates what is possible
High-intensity work leaves players fatigued for a period afterwards, so a demanding session placed too close to a match arrives on tired legs.
The days immediately after a fixture are therefore given to recovery and low-intensity technical work, regardless of what the coach would like to fix.
The days immediately before are given to sharpness and information rather than load, for the same reason in reverse.
Different qualities need different placement
Maximum-speed running, repeated sprints and heavy strength work each impose distinct recovery costs and cannot all be placed on the same day.
A common arrangement puts the highest-intensity work in the middle of the week, furthest from both matches, with the load tapering in either direction.
Pitch dimensions are used to control this, since a larger playing area produces more high-speed running and a smaller one produces more accelerations and duels.
Tactical content follows the same curve
Complex work involving the whole team requires concentration as well as running, so it sits alongside the higher-load days rather than at the end of the week.
The final session before a match is usually short, familiar and specific, covering set pieces and the opponent's likely shape rather than introducing anything new.
Introducing a new idea the day before a fixture reliably produces hesitation, because the players have not had time to make it automatic.
Fixture congestion collapses the structure
With two matches in a week, there are no days far enough from a fixture to place demanding work, and the week becomes recovery and preparation only.
Teams in that situation train the non-playing group separately, so that squad players who did not feature still receive the load they need.
Extended congested periods mean tactical development effectively pauses, which is one reason clubs value pre-season and international breaks so highly.
The plan has to survive contact with reality
Injuries, international call-ups and unexpected results all disrupt the intended structure, and rigid adherence to a plan is as unhelpful as having none.
Coaching staff generally protect the overall shape of the week, the placement of the heaviest day and the lightness of the last one, and adjust everything else.
What matters is that the load pattern repeats predictably, because players adapt to consistency and not to any particular arrangement of drills.