For most teams in the championship, you can outline a clear philosophy.
England hit in close with forward runners, assess the options and - when the time is right - probe space out wide.
Wales are slightly in transition this year, but have a direct style with big midfield runners creating holes to fall back on.
Scotland's ethos has been dubbed "ruck and run" as a result of their eagerness to recycle quickly and keep the ball in hand.
But France just don't look like they know what they are doing - their gameplan seems a random mix of ideas.
They appear torn between playing it tight with an emphasis on the set-piece and mauls, and giving the French public what they want with a more expansive game.
France have made more than twice as many offloads as any other team in the tournament.
They are trying to play off the cuff, but it is so long since they did that as a national side - and so few of their clubs do it in the Top 14 - that they are really struggling to make it work.
They have given away 64 turnovers while England have restricted the opposition to just 45. Nine of those turnovers against France have come inside their own 22, compared to just three conceded by England in that section of the pitch.
England vs france.
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