By Friday in a Test week, Adam Jones' work is largely done. There's rarely a calling for live scrummaging the day before a Test, so the former tighthead tends to wander around the pitch, watching on.
Whether it's an overcast morning in Rome or under the Principality Stadium's roof, the attire is the same. Shorts, polo and a bodywarmer over the top. If there's little to be done on a Friday, then you can be sure that Wales' scrum consultant - on secondment from Harlequins - is doing his fair share of work in the week.
Those who know Jones and what he is like as a coach will tell you he is a scrummaging obsessive, the type to wax lyrical about the importance of the set-piece in a sport that increasingly wants to bypass it.
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The former prop is also adept at tailoring his coaching methods to suit different players. That's useful, given Wales having a group of tightheads with good age profiles in terms of experience, even if their cap count doesn't match that.
That is certainly the case for WillGriff John. Few, if any, were overly effusive about the selection of John for Matt Sherratt's first game in charge. The Sale tighthead had just two caps prior to Saturday's clash with Ireland.
They were back in the autumn of 2021. And yet, the moustachioed man - whose facial hair and build give him the appearance of a turn-of-the-century strongman - went very well as Wales pushed Ireland all the way.
Around the park, John showed up well. There were some solid carries, nice ball movement and one powerful counter-ruck led to a Welsh penalty. Only Jac Morgan, Tommy Reffell and Dafydd Jenkins made more tackles for Wales, too.
But, as you'd expect from a tighthead, it was at the scrum where he, along with the rest of the Welsh front-row, earned their plaudits.
Wales did their homework in that area of the game. Ireland loosehead Andrew Porter, for as brilliant a prop as he is, has a tendency to drive in on an angle when he scrummages.
In previous years, Wales might have dropped hints about Ireland's scrummaging nuances publicly, as well as whatever communication they'd normally have with the officials in the build-up.
Back in 2020, Wales said they expected France to cheat at the scrum. It backfired, with Wales' attempts to appear whiter than white not paying off.
Arguably, that's set the tone for Wales' scrum in recent years. Sources close to the team have previously said that Wales have spoken about being dominant at the scrum, but haven’t always actioned that in training in terms of scrummaging for penalties.
That’s easy to say, but, going back to that France example, the whole 'painting pictures for the referee' talk has occasionally looked like getting the excuses in early.
Last week, the 'c-word' was uttered once about Ireland's breakdown antics, but was quickly scrubbed for fear of riling the Irish beast.
Clearly, the focus instead was on how to get after Ireland scrum. If Wales could stop Porter from getting an advantage driving through onto Elliot Dee, then they had a tighthead in Thomas Clarkson making his first Test start on the other side of the scrum.
And that's what they did. From the off, John got across the gap from the hit really quickly, scrummaging square to put the pressure on Porter. Angling across, the Irish prop lost his bind for the first of Wales' scrum penalties.
From then on, that negated Porter's ability to drive across. Instead, as some of the overhead angles showed later on, the Leinster prop tended to remain square.
With John holding up strongly against Porter, it allowed Nicky Smith - woefully overlooked by Wales coaches in recent years despite his scrummaging ability - to go after Clarkson.
On his 25th birthday, Clarkson struggled to deal with the height Smith was setting at - dropping to the deck twice as a result. Three scrums, three penalties to Wales.
Smith's departure for a HIA, as well as Ireland captain Dan Sheehan getting into referee Christophe Ridley's ear about the height of the scrums, knocked Wales a bit.
"The dark arts of scrum were probably at play there," said the Irish skipper afterwards. "We wanted to get a fair contest.
"We were just struggling to get nice entries so I was asking him to get clean entries. We had to adapt a little bit. It took us a few scrums to figure it out. It gave them a lot of access at the start of the game."
Gareth Thomas, having been warned to set higher, was penalised for bailing out under pressure from Clarkson in his first scrum. Wales did their best to, in the words of captain Morgan, make it a "battle of heights as well".
From there, the scrum was probably a more even contest. But throughout, John remained solid.
Having been away from the Test scene for over three years, it was a performance perhaps few outside of the Welsh camp saw coming. And, in a week which has shown the importance of good coaching, it also underlined just what Jones has brought while on secondment from the Stoop.
