Given that he worked as an analyst with Pep Guardiola at Manchester City for four years, you can see why Piet Cremers is the first person Wales head coach Craig Bellamy turns to during games.
Bellamy is as energetic on the touchline as he was as a player and, whenever he darts back to his seat in the dugout, he is usually doing so to consult Cremers and his screen.
They are analysing the game in real time, watching replays to better understand what they have just witnessed with their own eyes, processing data to decide how best to adapt and make the next move.
The Wales job is Bellamy's first managerial role in senior football but, having worked with Cremers as part of Vincent Kompany's staff at Burnley, this is already a well-established working relationship.
When he is asked what Cremers has brought to his Wales set-up, Bellamy simply says: "Everything."
Under their guidance, Burnley stormed to the Championship title in 2023 and, although they only lasted one season in the Premier League, their accomplishments – and the playing style which accompanied them – convinced the mighty Bayern Munich to hire Kompany as their manager.
Once Bellamy took charge of Wales and started assembling his coaching team, he had to call Cremers.
"The year we had at Burnley was down to him," says Bellamy. "We murdered the league, and it was that. It hadn't been done before.
"Someone else might have got five-odd points more [over a season] but, trust me, you didn't do what we did. Nobody did. We only lost three games all season and one of them was when we were already promoted. It was the manner in which we did it.
"From November onwards, nobody saw the ball, everywhere we went. Home or away, it was an annihilation. If teams got a 0-0 draw, they were applauding and doing a lap of honour. It was that good. It was just like 'wow'. We were so good without the ball, the intensity… and, with it, we were able to find different solutions, able to adapt.
"Piet really pushed us towards this way. Vinny was always very intelligent about sounding out the best people from here, taking that idea from here, if he found someone here… He brought Piet into our world then and it was just like 'wow', he moved so many different areas for us."