Why World War I produced no simple logistics loser

Who had the worst logistics in World War I?

Russia had the clearest supply difficulties, but no belligerent stands out as a complete logistical failure.

The panel resists naming an obvious logistics loser because the conflict's static character reduced the opportunities for a single spectacular operational collapse. Russia is the strongest candidate because of its long and underdeveloped supply routes. Even that judgment needs qualification, since Russian armies still mounted major offensives against Germany and Austria-Hungary. Russian structural weakness did not amount to total logistical failure.