There is no need to change team stats for this one. It's not easy by any means but you can do it!
First thing to do is try not to use your back line and get yourself turned over. Best thing to do is keep it tight with the forwards and use pick and go or pass off to a forward from the ruck rather than swinging it out to the backs.
When ever you find yourself deep in your own 22, punt the ball out and to the opposite corner to where you are on the pitch. So if you're in your own 22 and to the left angle your kick to the right. Keep doing this and work your way up the field.
One last thing... Always take the points! If you can, just keep going for drop goals if you can't cross the try line.
If you not inside your 22, then try not to kick it straight out. When it comes to the line-outs just keep jumping front.
Do these few things and you will win. Think my finally score was 22-21 using Japan as my side. It gets frustrating but it can be done!