I was inspired the other day by something Steve Fenn (@StatHunting on Twitter) wrote about analytics in soccer:
IMO it’d be better if a club’s analytics 1st made sure metric was predictive, or at least repeatable.
— Steve Fenn (@StatHunting) July 28, 2015
This question of repeatability is something that resonated with me, so I started digging around a bit. While I can’t claim great familiarity with some of the advanced modeling that goes on around the soccer world, my starting point was a fairly simple question:
How repeatable is team success itself?