Capacity for What?
When better numbers do not yet change the game.
SKILLS4ATHLETES / KNOWLEDGE
Questions worth bringing into training.
Essays and notes on performance, physical preparation, skill acquisition, coaching, data and training environment design.
I write from a practitioner’s perspective. Research helps organise the questions. Sport tests how much the answers are worth.
Observation, task and environment — practice as the starting point for a question.
Start here
If this is your first visit, these essays best represent the problems I return to most often.
From Movement Engineering to Process Management
Why fixing the movement is not always fixing the problem.
Most między liczbą a boiskiem
What a result cannot tell us without the context that produced it.
Latest publications
New essays and notes appear here automatically after publication on Substack.
- Lessons Beyond the Game
on 11.09.2026Learning to Work With Uncertainty
- Stan zapalny. Bohater czy wróg?on 10.09.2026
Stan zapalny ma fatalny PR…
- Most między liczbą a boiskiemon 10.06.2026
O kontekście jako brakującym ogniwie siatkarskiej analizy
- From Movement Engineering to Process Managementon 26.05.2026
Why fixing the movement is not always fixing the problem
- Capacity for What?on 08.05.2026
WHEN BETTER NUMBERS DON’T YET CHANGE THE GAME
- Playing to Win, or Coaching Not to Lose?on 05.05.2026
Early in my career, I had too much respect for the hardest-working coach in the room.
Recently selected essays
Capacity for What?
When better numbers do not yet change the game.
From Movement Engineering to Process Management
Why fixing the movement is not always fixing the problem.
Most między liczbą a boiskiem
What a result cannot tell us without the context that produced it.
Playing to Win, or Coaching Not to Lose?
On coaching courage, responsibility and decisions made under the pressure of results.
Problem map
Problems I keep returning to
I do not organise this space around a single sport or method. Different sports impose different demands, but many questions about capability development, learning, transfer and adaptation recur across environments.
PERFORMANCE & PHYSICAL PREPARATION
How can we develop physical capacities that genuinely expand the range of solutions available to an athlete?
SKILL & LEARNING
How does an athlete learn to perceive information and find functional solutions?
COACHING & ENVIRONMENT
What should a coach control, and where should they create room for adaptation?
DATA & INTERPRETATION
What do we truly know, what do we merely measure, and where does interpretation begin?
Three perspectives
Different problems require different tools. Yet there are three questions I return to regularly.
What produced the behaviour we observed?
Not only what happened, but under what conditions, with what capabilities and with what information available.
What will this work change where performance truly matters?
Improving a test result or exercise execution matters. The next question is how it changes the athlete’s capacity to act beyond the training task itself.
How can we create conditions in which the athlete can adapt?
Structure, feedback and intention should support learning — not replace it.
Reflections from practice
From practice
Not every essay begins with research. Sometimes it begins with a training session that did not work, a number I cannot explain, a conversation with an athlete, or a situation that forces me to question one of my own assumptions.
Those moments often lead to the most interesting questions.
Playing to Win, or Coaching Not to Lose?
Early in my career, I had too much respect for the hardest-working coach in the room.
I am not looking for simple answers. I am looking for better questions.
That does not mean every answer is equally good or that everything simply ‘depends on context’. Data matters. Principles matter. Experience matters. I simply try to remember that each describes only part of the problem.
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I publish in Polish and English — whenever a subject deserves more than a short post.
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Skills4Athletes / Knowledge / practice, research and questions