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CIES Football Observatory: Numbers That Keep You Honest

Data across 60 leagues — useful for perspective, dangerous as a shortcut.

Cam Jolley

Cam Jolley

Co-Founder & Academy Coach, Coach Central

The CIES Football Observatory is where I go when I want data to challenge my instinct rather than confirm it — but I try never to let a number make a decision a conversation with a player should make.

What it actually is

It is a research group out of Neuchâtel that publishes weekly and monthly letters, reports, transfer-value estimates, and demographic and migration data across around sixty leagues worldwide. It is serious, evidence-based work. For a youth coach it is not day-to-day stuff, but it is really valuable perspective — how players develop across countries, what pathways actually look like, how rare the outcomes we quietly plan around really are.

Why perspective matters to me

Honestly, the biggest thing I take from data like this is humility. It is easy in youth football to talk like every good thirteen-year-old is on a straight line to a pro contract. The demographic reality is a good, sobering counterweight to that. It reminds me that my job is to develop this kid and this person in front of me and to make sure they walk away from every session feeling like they gained something — because I cannot promise them an outcome, and neither can anyone else.

The line I do not cross

Data is a tool, and I treat it like one. A number can tell me something is worth looking at. It cannot tell me who is a good teammate, who is figuring themselves out through a hard stretch, or who is the bottom of my roster today and a completely different player in a year. I believe every player should be treated like they could become great, and no dataset is allowed to quietly talk me out of that.

Read one CIES report on player development or migration, then look at your roster and pick the player you're most tempted to write off. Ask what you'd do differently if you assumed they were a late developer, not a finished product.

  • Use big-picture data for perspective and humility, not for day-to-day session decisions.
  • The demographic reality is a healthy counterweight to outcome-obsessed youth culture.
  • A number can flag something to look at; it can't measure character, timing, or a late developer.
  • CIES Football Observatory. Football research, transfer-value estimates, and demographic data across ~60 leagues. football-observatory.com/

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