Lambert’s argument is simple: Scotland need an early win before the schedule hardens. The report says he believes three points in the first match would give Scotland "a lot of foothold in the group" ahead of meetings with Morocco and Brazil.
That is usually how tournament football works for sides outside the elite bracket.
For a nation that has so often found major tournaments difficult to navigate, the psychology is obvious. Beat Haiti, and everything sharpens into focus. Fail to do it, and the pressure before Morocco could become enormous.
Lambert is also right to frame the wider group as unforgiving. Morocco arrive with a recent reputation for structure, discipline and genuine belief on the biggest stage. As Lambert puts it in the report, "Morocco, as everybody saw in the last World Cup, are a good side."
His view on Brazil is more provocative. "Is the Brazilian team what it was in 1998? No, it's nowhere near that level," Lambert says in the report. That may be a fair comment on aura and consistency, but Brazil remain Brazil: talent-rich, dangerous, and rarely comfortable opponents.
This is why the Haiti game appears so important. Scotland may not need perfection, but they almost certainly need a platform. Lambert’s point is not about dreaming too far ahead; it is about earning the right to believe.
Now the focus shifts to that opening fixture on 13 June. If Scotland start well, the conversation changes immediately. If they do not, the matches against Morocco on 19 June and Brazil on 24 June could start to feel like rescue missions rather than opportunities.