Episode 2

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Published on:

21st Feb 2025

Ep2: Expected Goals (xG) and Expected Assists (xA) - What Do They Mean? How Are They Calculated?

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Summary

In this conversation, David Bromley and Tom Butterfield delve into the intricacies of football analytics, focusing on the concepts of Expected Goals (XG) and Expected Assists (XA). They discuss how XG provides a metric for evaluating the quality of goal-scoring opportunities, taking into account various factors such as player position and shot quality. The conversation transitions to XA, which assesses the likelihood of a pass leading to a goal, highlighting its potential for recruitment and player evaluation. Throughout, they emphasize the importance of these metrics in understanding player performance and team dynamics. In this conversation, Tom Butterfield and David Bromley delve into the intricacies of football analytics, focusing on expected assists (XA) and their significance in evaluating player contributions. They discuss how traditional metrics can be misleading and emphasize the importance of understanding the context behind the numbers. The conversation also touches on tactical approaches in football, the role of player quality in executing passes, and the evolving nature of football analytics. They conclude by hinting at future discussions on ball progression metrics, highlighting the continuous exploration of football's analytical landscape.

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About the Podcast

A.I. In Football

Recruitment Decisions, Done Properly.

AI in Football: Recruitment Decisions, Done Properly is a practical podcast about how football clubs make better recruitment decisions in an AI world — without the hype.

We don’t chase novelty tools. We focus on the thinking and structure that makes any tool useful: clear role briefs, behaviours over labels, constraints and trade-offs, repeatable shortlisting, and decision review that actually improves the process.

Each episode gives you something you can use:

- Role Definition Templates (behaviour-based, not position labels)

- Question sets that lead to better shortlists

- Meeting Structures that stop recruitment becoming a persuasion contest

- Simple Ways to Stress-Test Decisions (“what would make this wrong?”)

- How AI Fits Safely: drafting, checking, standardising outputs — never replacing judgement

If you work in recruitment, scouting, analysis, coaching, or you’re aiming to, this show is for you. Clarity First. Tools Second.

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About your hosts

Thomas Butterfield

I'm a very approachable obsessive learner who is always interested in the stories of others, and how that information and experience can be used to help others move the needle of their life in a positive direction.

As a result of the work I do adults and younger people understand the importance of being an active participant in their own health.

The result of this is we at Elevate Health Chiropractic and Wellbeing are putting better educated individuals into the community who are making better health decisions for themselves and those they care for the most.
They move better, they eat better, they think better.

They Feel Better.

We are always looking to work with and help individuals and organisations who value their own health, that of their family, or their staff high enough to take that next step with Elevate Health, Chiropractic and Wellbeing.

David Bromley

For the last fifteen years I have applied my analytical, systems-evaluation and financial background to the football industry.

As a long-term student of the game I hold coaching badges from the English Football Association and am a certified member of the Professional Football Scouts Association.

I hold distinctions in the Prozone (STATS) Professional Performance Analysis/ Performance Data & Recruitment Certificates Levels 1,2 & 3 in addition to being an F.A. Registered Intermediary.

My experience in football has enabled me to view player recruitment from the 'sharp end' and allows me to tailor my service to meet clients' best interests.