Coaches Academy II
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You have watched hours of tactics videos. You have attended video analyst courses. You have taken a coaching license and trained a local youth team. You have read all the books and every article on the Barcelona Innovation Hub. You have watched the YouTube channels and listened to all the podcasts.
And during all the time, you have written to clubs and national teams. Told them you will work for free, only to get a foot in the door. And now you have finally made it. A club has put faith in you and employed you as a full-time data scientist.
What can you expect at your first day at work? Probably everyone will head off to watch the first team training. Once back they will be extremely busy preparing for the next match, watching videos of the opposition, talking through set-pieces.
It is best to take small steps.
One of the first questions I looked at was the effectiveness of half-time talks. The sporting director said that he felt that the manager’s half-time talks weren’t inspirational enough. They were too factual and not enough emotion. The players seemed to come out after the break with their arms hanging down and hunched shoulders. They were not standing up tall and he felt we came off worse as a result.
This was a statistical question. Were we stronger or weaker after halftime? I crunched the numbers, comparing our expected threat (quality of attacking play) and expected goals for the first fifteen minutes after the pause to the rest of the match. I also looked at similar statistics for other teams. The conclusion? We were strongest during those fifteen minutes. There was no evidence the manager’s half time talks were not working. On the other hand, we could see that we were always fading the last 15 minutes. We could start to think about ways to work with fitness and mentality during the last part of the match.
The question about half-time talks did not come up in a formal meeting about how we could use analytics. It came up while sitting in the dugout watching training. Football does not work in a linear fashion – meeting, decision, analysis, result – it works through a web of complex communications – over coffee, training and table tennis tournaments.
It is answering small questions like this which builds confidence. And listening to how people in football work allows you to learn. Those working in football do not necessarily want statistics to remind them of the pressures they are already under. There are very few jobs in the world where your performance is assessed every Saturday in front of tens of thousands of passionate fans, all of whom have an opinion. There are few jobs where failure over 90 minutes leads to an internal darkness, which you have to push yourself through for the sake of those around you. The pressures are already large enough.
That is where you can start. You can start to look at why the teams form is dropping in the last 15 minutes: who is running back and who is not and why. You can start to look at whether the overloads the manager is trying to create on the left are working. You can analyze when a long throw-in works and when it does not. You can start to develop Key Performance Indicators (KPIs) for the team and players. You can investigate how these can be used in scouting new players.
Then you can start to build an IT system around what you have learnt, providing automated insight that reflects the culture of the club. Then you are a football data scientist.
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