Riddle Me This

Here's the question....it's soccer related.
The seven kids on my soccer team have been having a really fun season. They all think they are really doing well at learning the positions and every game they leave with smiles on their faces. Here's the thing....we haven't won a single game....we tied once but otherwise....no wins. Total points this season.....two(both scored by the same person). Sometimes we lose by quite a big margin. They don't seem to mind at all. They have never asked the score. Today after a particularly promising...though no scoring....game, one of them said to me that they thought they had won that game.
All would be fine except that the coaches of the other teams we play keep asking if I want them to pull one of their players, we play 4 on 4, so we have a better chance of scoring. When I decline, they are quite forceful in suggesting it would be best.
My reasoning for not doing it is that I don't want to draw attention to an issue that the kids haven't noticed yet!! (And potentially make them feel badly for not scoring.)
We have one more game day left....next Wednesday. Should I leave them to play how they have been or should I ask them to pull a player so we can score?