It is obvious that the presented models with a single parameter of self-affirmation are a
gross over-simplification of the complex psycho-social phenomena on a football pitch. It is all
the more surprising then, how rather well they model the considered score distributions [37].
Naturally, however, a plethora of opportunities for improvement of the description and
further studies opens up. For instance, considering averages over whole leagues or cups,
we have not taken into account the differences in skill between the teams. Likewise, if
time-resolved scoring data were made available, a closer investigation of the intra-team and
inter-team motivation and demotivation effects would provide an intriguing future enterprise
to undertake.