Does adding more make us understand less?

I’ve been thinking about where coaches sit right now when it comes to ecological dynamics. Not in terms of whether they agree with it or not, but in how it is actually showing up in their environments.

Some probably feel like they don’t know enough yet. That they need more time before they can really apply it with confidence. Others feel like they’ve seen enough and are ready to start shaping their sessions differently. But there is another space that seems to be emerging, and it is a little less obvious.

It is the point where things start to become complicated, not because the game itself is complex, but because of what we are adding into it.

Ideas begin to build. Constraints, affordances, variability. Each one makes sense. Each one feels like it should improve the session. So we bring them in, adjust a few things, layer another rule, tweak the space, and before long the activity looks more sophisticated. There is more going on. It feels like we are doing more.

But it is worth pausing for a moment and asking a simple question. Do we actually understand what any one of those changes is doing?

Take field size as an example. Reducing space is something most coaches do regularly, but the impact of that decision runs deeper than just making things “harder.” It changes how much time players feel they have, the options they are able to perceive, and the type of decisions they begin to make. It can encourage certain behaviours to appear more often while making others much harder to find. But that only becomes clear if we spend time with it.

What happens when only the width is reduced compared to when only the length is shortened? When does the space start to feel too tight, and what do players do in response to that? When does it open up again, and how does that change the way they move and interact? These are not small details to brush past. They are the design itself.

The challenge is that it is easy to move on too quickly. To see one response, make a quick judgement, and then add something else on top. Another constraint, another rule, another idea. The intention is usually to improve the session, to make it more game-like, more engaging, more aligned with what players will experience in competition. But when changes are stacked without really understanding their individual effect, it becomes harder to see what is actually shaping behaviour.

This is where the idea of “knowing too much” becomes a little misleading. It is not that coaches know too much. It is that they may be working with more ideas than they have properly explored. The result is not better design, but busier design.

There is a natural temptation to think that progress comes from adding more. More concepts, more tools, more ways to manipulate the environment. But progress might instead come from staying with one idea for longer, adjusting it, observing what happens, and building an understanding of how players respond across different situations.

Because the goal is not to make sessions look complex. It is to be clear about what is being shaped and why it is being shaped that way. And that clarity does not come from how many ideas are used, but from how well those ideas are understood in practice.