Just read a comment on a Guardian article that struck me with its simplicity.

The game has got faster and faster, and then players have got stronger and fitter.

But the recommended dimensions of the pitch have never changed.

Taking a player away from each team would create 9% more space. The game's probably speeded up by at least 20% in the last 30 years anyway.

Excellent idea, especially if you believe (as I do) that football is reaching saturation point in all sorts of ways.