Football analytics are now so mainstream that it's not uncommon to hear terms such as 'low block' and 'high press' discussed in the stands or the pub.
But as recently as the turn of the century, the art was still practised only by a small number of pioneers.
People like Tim Jenkins. Now head of analysis at the Liverpool FC Academy and individual coach for the Reds’ U23s, back in 2001 he was a university graduate in his early 20s, dropped in the deep end as the analyst in residence for a Derby County side trying to avoid relegation from the Premier League.